Re: Linux 4.9.162

From: Greg KH
Date: Wed Mar 06 2019 - 04:23:06 EST

diff --git a/Makefile b/Makefile
index 239b74a7147b..fce163d09139 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
VERSION = 4
PATCHLEVEL = 9
-SUBLEVEL = 161
+SUBLEVEL = 162
EXTRAVERSION =
NAME = Roaring Lionus

diff --git a/arch/arc/include/asm/bitops.h b/arch/arc/include/asm/bitops.h
index 8da87feec59a..99e6d8948f4a 100644
--- a/arch/arc/include/asm/bitops.h
+++ b/arch/arc/include/asm/bitops.h
@@ -340,7 +340,7 @@ static inline __attribute__ ((const)) int __fls(unsigned long x)
/*
* __ffs: Similar to ffs, but zero based (0-31)
*/
-static inline __attribute__ ((const)) int __ffs(unsigned long word)
+static inline __attribute__ ((const)) unsigned long __ffs(unsigned long word)
{
if (!word)
return word;
@@ -400,9 +400,9 @@ static inline __attribute__ ((const)) int ffs(unsigned long x)
/*
* __ffs: Similar to ffs, but zero based (0-31)
*/
-static inline __attribute__ ((const)) int __ffs(unsigned long x)
+static inline __attribute__ ((const)) unsigned long __ffs(unsigned long x)
{
- int n;
+ unsigned long n;

asm volatile(
" ffs.f %0, %1 \n" /* 0:31; 31(Z) if src 0 */
diff --git a/arch/powerpc/include/asm/epapr_hcalls.h b/arch/powerpc/include/asm/epapr_hcalls.h
index 334459ad145b..90863245df53 100644
--- a/arch/powerpc/include/asm/epapr_hcalls.h
+++ b/arch/powerpc/include/asm/epapr_hcalls.h
@@ -508,7 +508,7 @@ static unsigned long epapr_hypercall(unsigned long *in,

static inline long epapr_hypercall0_1(unsigned int nr, unsigned long *r2)
{
- unsigned long in[8];
+ unsigned long in[8] = {0};
unsigned long out[8];
unsigned long r;

@@ -520,7 +520,7 @@ static inline long epapr_hypercall0_1(unsigned int nr, unsigned long *r2)

static inline long epapr_hypercall0(unsigned int nr)
{
- unsigned long in[8];
+ unsigned long in[8] = {0};
unsigned long out[8];

return epapr_hypercall(in, out, nr);
@@ -528,7 +528,7 @@ static inline long epapr_hypercall0(unsigned int nr)

static inline long epapr_hypercall1(unsigned int nr, unsigned long p1)
{
- unsigned long in[8];
+ unsigned long in[8] = {0};
unsigned long out[8];

in[0] = p1;
@@ -538,7 +538,7 @@ static inline long epapr_hypercall1(unsigned int nr, unsigned long p1)
static inline long epapr_hypercall2(unsigned int nr, unsigned long p1,
unsigned long p2)
{
- unsigned long in[8];
+ unsigned long in[8] = {0};
unsigned long out[8];

in[0] = p1;
@@ -549,7 +549,7 @@ static inline long epapr_hypercall2(unsigned int nr, unsigned long p1,
static inline long epapr_hypercall3(unsigned int nr, unsigned long p1,
unsigned long p2, unsigned long p3)
{
- unsigned long in[8];
+ unsigned long in[8] = {0};
unsigned long out[8];

in[0] = p1;
@@ -562,7 +562,7 @@ static inline long epapr_hypercall4(unsigned int nr, unsigned long p1,
unsigned long p2, unsigned long p3,
unsigned long p4)
{
- unsigned long in[8];
+ unsigned long in[8] = {0};
unsigned long out[8];

in[0] = p1;
diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h
index a8d85a687cf4..2177c7551ff7 100644
--- a/arch/x86/include/asm/uaccess.h
+++ b/arch/x86/include/asm/uaccess.h
@@ -292,8 +292,7 @@ do { \
__put_user_asm(x, ptr, retval, "l", "k", "ir", errret); \
break; \
case 8: \
- __put_user_asm_u64((__typeof__(*ptr))(x), ptr, retval, \
- errret); \
+ __put_user_asm_u64(x, ptr, retval, errret); \
break; \
default: \
__put_user_bad(); \
@@ -427,8 +426,10 @@ do { \
#define __put_user_nocheck(x, ptr, size) \
({ \
int __pu_err; \
+ __typeof__(*(ptr)) __pu_val; \
+ __pu_val = x; \
__uaccess_begin(); \
- __put_user_size((x), (ptr), (size), __pu_err, -EFAULT); \
+ __put_user_size(__pu_val, (ptr), (size), __pu_err, -EFAULT);\
__uaccess_end(); \
__builtin_expect(__pu_err, 0); \
})
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index c8efacf2e65f..01eb0451b96d 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -2862,6 +2862,14 @@ static int nested_svm_vmexit(struct vcpu_svm *svm)
kvm_mmu_reset_context(&svm->vcpu);
kvm_mmu_load(&svm->vcpu);

+ /*
+ * Drop what we picked up for L2 via svm_complete_interrupts() so it
+ * doesn't end up in L1.
+ */
+ svm->vcpu.arch.nmi_injected = false;
+ kvm_clear_exception_queue(&svm->vcpu);
+ kvm_clear_interrupt_queue(&svm->vcpu);
+
return 0;
}

@@ -3932,25 +3940,14 @@ static int avic_incomplete_ipi_interception(struct vcpu_svm *svm)
kvm_lapic_reg_write(apic, APIC_ICR, icrl);
break;
case AVIC_IPI_FAILURE_TARGET_NOT_RUNNING: {
- int i;
- struct kvm_vcpu *vcpu;
- struct kvm *kvm = svm->vcpu.kvm;
struct kvm_lapic *apic = svm->vcpu.arch.apic;

/*
- * At this point, we expect that the AVIC HW has already
- * set the appropriate IRR bits on the valid target
- * vcpus. So, we just need to kick the appropriate vcpu.
+ * Update ICR high and low, then emulate sending IPI,
+ * which is handled when writing APIC_ICR.
*/
- kvm_for_each_vcpu(i, vcpu, kvm) {
- bool m = kvm_apic_match_dest(vcpu, apic,
- icrl & KVM_APIC_SHORT_MASK,
- GET_APIC_DEST_FIELD(icrh),
- icrl & KVM_APIC_DEST_MASK);
-
- if (m && !avic_vcpu_is_running(vcpu))
- kvm_vcpu_wake_up(vcpu);
- }
+ kvm_lapic_reg_write(apic, APIC_ICR2, icrh);
+ kvm_lapic_reg_write(apic, APIC_ICR, icrl);
break;
}
case AVIC_IPI_FAILURE_INVALID_TARGET:
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index 344f34746c10..28ce17405aab 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -81,6 +81,7 @@
#include <asm/uaccess.h>

static DEFINE_IDR(loop_index_idr);
+static DEFINE_MUTEX(loop_index_mutex);
static DEFINE_MUTEX(loop_ctl_mutex);

static int max_part;
@@ -1559,11 +1560,9 @@ static int lo_compat_ioctl(struct block_device *bdev, fmode_t mode,
static int lo_open(struct block_device *bdev, fmode_t mode)
{
struct loop_device *lo;
- int err;
+ int err = 0;

- err = mutex_lock_killable(&loop_ctl_mutex);
- if (err)
- return err;
+ mutex_lock(&loop_index_mutex);
lo = bdev->bd_disk->private_data;
if (!lo) {
err = -ENXIO;
@@ -1572,20 +1571,18 @@ static int lo_open(struct block_device *bdev, fmode_t mode)

atomic_inc(&lo->lo_refcnt);
out:
- mutex_unlock(&loop_ctl_mutex);
+ mutex_unlock(&loop_index_mutex);
return err;
}

-static void lo_release(struct gendisk *disk, fmode_t mode)
+static void __lo_release(struct loop_device *lo)
{
- struct loop_device *lo;
int err;

- mutex_lock(&loop_ctl_mutex);
- lo = disk->private_data;
if (atomic_dec_return(&lo->lo_refcnt))
- goto out_unlock;
+ return;

+ mutex_lock(&loop_ctl_mutex);
if (lo->lo_flags & LO_FLAGS_AUTOCLEAR) {
/*
* In autoclear mode, stop the loop thread
@@ -1602,10 +1599,16 @@ static void lo_release(struct gendisk *disk, fmode_t mode)
loop_flush(lo);
}

-out_unlock:
mutex_unlock(&loop_ctl_mutex);
}

+static void lo_release(struct gendisk *disk, fmode_t mode)
+{
+ mutex_lock(&loop_index_mutex);
+ __lo_release(disk->private_data);
+ mutex_unlock(&loop_index_mutex);
+}
+
static const struct block_device_operations lo_fops = {
.owner = THIS_MODULE,
.open = lo_open,
@@ -1889,7 +1892,7 @@ static struct kobject *loop_probe(dev_t dev, int *part, void *data)
struct kobject *kobj;
int err;

- mutex_lock(&loop_ctl_mutex);
+ mutex_lock(&loop_index_mutex);
err = loop_lookup(&lo, MINOR(dev) >> part_shift);
if (err < 0)
err = loop_add(&lo, MINOR(dev) >> part_shift);
@@ -1897,7 +1900,7 @@ static struct kobject *loop_probe(dev_t dev, int *part, void *data)
kobj = NULL;
else
kobj = get_disk(lo->lo_disk);
- mutex_unlock(&loop_ctl_mutex);
+ mutex_unlock(&loop_index_mutex);

*part = 0;
return kobj;
@@ -1907,13 +1910,9 @@ static long loop_control_ioctl(struct file *file, unsigned int cmd,
unsigned long parm)
{
struct loop_device *lo;
- int ret;
-
- ret = mutex_lock_killable(&loop_ctl_mutex);
- if (ret)
- return ret;
+ int ret = -ENOSYS;

- ret = -ENOSYS;
+ mutex_lock(&loop_index_mutex);
switch (cmd) {
case LOOP_CTL_ADD:
ret = loop_lookup(&lo, parm);
@@ -1927,15 +1926,19 @@ static long loop_control_ioctl(struct file *file, unsigned int cmd,
ret = loop_lookup(&lo, parm);
if (ret < 0)
break;
+ mutex_lock(&loop_ctl_mutex);
if (lo->lo_state != Lo_unbound) {
ret = -EBUSY;
+ mutex_unlock(&loop_ctl_mutex);
break;
}
if (atomic_read(&lo->lo_refcnt) > 0) {
ret = -EBUSY;
+ mutex_unlock(&loop_ctl_mutex);
break;
}
lo->lo_disk->private_data = NULL;
+ mutex_unlock(&loop_ctl_mutex);
idr_remove(&loop_index_idr, lo->lo_number);
loop_remove(lo);
break;
@@ -1945,7 +1948,7 @@ static long loop_control_ioctl(struct file *file, unsigned int cmd,
break;
ret = loop_add(&lo, -1);
}
- mutex_unlock(&loop_ctl_mutex);
+ mutex_unlock(&loop_index_mutex);

return ret;
}
@@ -2028,10 +2031,10 @@ static int __init loop_init(void)
THIS_MODULE, loop_probe, NULL, NULL);

/* pre-create number of devices given by config or max_loop */
- mutex_lock(&loop_ctl_mutex);
+ mutex_lock(&loop_index_mutex);
for (i = 0; i < nr; i++)
loop_add(&lo, i);
- mutex_unlock(&loop_ctl_mutex);
+ mutex_unlock(&loop_index_mutex);

printk(KERN_INFO "loop: module loaded\n");
return 0;
diff --git a/drivers/gpu/drm/msm/msm_rd.c b/drivers/gpu/drm/msm/msm_rd.c
index 8487f461f05f..4823019eb422 100644
--- a/drivers/gpu/drm/msm/msm_rd.c
+++ b/drivers/gpu/drm/msm/msm_rd.c
@@ -112,7 +112,9 @@ static void rd_write(struct msm_rd_state *rd, const void *buf, int sz)
char *fptr = &fifo->buf[fifo->head];
int n;

- wait_event(rd->fifo_event, circ_space(&rd->fifo) > 0);
+ wait_event(rd->fifo_event, circ_space(&rd->fifo) > 0 || !rd->open);
+ if (!rd->open)
+ return;

n = min(sz, circ_space_to_end(&rd->fifo));
memcpy(fptr, ptr, n);
@@ -202,7 +204,10 @@ static int rd_open(struct inode *inode, struct file *file)
static int rd_release(struct inode *inode, struct file *file)
{
struct msm_rd_state *rd = inode->i_private;
+
rd->open = false;
+ wake_up_all(&rd->fifo_event);
+
return 0;
}

diff --git a/drivers/mmc/host/mmc_spi.c b/drivers/mmc/host/mmc_spi.c
index e77d79c8cd9f..6224ad37fd80 100644
--- a/drivers/mmc/host/mmc_spi.c
+++ b/drivers/mmc/host/mmc_spi.c
@@ -1450,6 +1450,7 @@ static int mmc_spi_probe(struct spi_device *spi)
mmc->caps &= ~MMC_CAP_NEEDS_POLL;
mmc_gpiod_request_cd_irq(mmc);
}
+ mmc_detect_change(mmc, 0);

if (host->pdata && host->pdata->flags & MMC_SPI_USE_RO_GPIO) {
has_ro = true;
diff --git a/drivers/net/ethernet/altera/altera_tse_main.c b/drivers/net/ethernet/altera/altera_tse_main.c
index a0eee7218695..e306342506f1 100644
--- a/drivers/net/ethernet/altera/altera_tse_main.c
+++ b/drivers/net/ethernet/altera/altera_tse_main.c
@@ -692,8 +692,10 @@ static struct phy_device *connect_local_phy(struct net_device *dev)

phydev = phy_connect(dev, phy_id_fmt, &altera_tse_adjust_link,
priv->phy_iface);
- if (IS_ERR(phydev))
+ if (IS_ERR(phydev)) {
netdev_err(dev, "Could not attach to PHY\n");
+ phydev = NULL;
+ }

} else {
int ret;
diff --git a/drivers/net/ethernet/ibm/ibmveth.c b/drivers/net/ethernet/ibm/ibmveth.c
index 4996228fd7e6..955f658f3b65 100644
--- a/drivers/net/ethernet/ibm/ibmveth.c
+++ b/drivers/net/ethernet/ibm/ibmveth.c
@@ -1240,7 +1240,6 @@ static int ibmveth_poll(struct napi_struct *napi, int budget)
struct iphdr *iph;
u16 mss = 0;

-restart_poll:
while (frames_processed < budget) {
if (!ibmveth_rxq_pending_buffer(adapter))
break;
@@ -1338,7 +1337,6 @@ static int ibmveth_poll(struct napi_struct *napi, int budget)
napi_reschedule(napi)) {
lpar_rc = h_vio_signal(adapter->vdev->unit_address,
VIO_IRQ_DISABLE);
- goto restart_poll;
}
}

diff --git a/drivers/net/usb/asix_devices.c b/drivers/net/usb/asix_devices.c
index 5be6b67492d5..393fd3ed6b94 100644
--- a/drivers/net/usb/asix_devices.c
+++ b/drivers/net/usb/asix_devices.c
@@ -729,8 +729,13 @@ static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf)
asix_read_cmd(dev, AX_CMD_STATMNGSTS_REG, 0, 0, 1, &chipcode, 0);
chipcode &= AX_CHIPCODE_MASK;

- (chipcode == AX_AX88772_CHIPCODE) ? ax88772_hw_reset(dev, 0) :
- ax88772a_hw_reset(dev, 0);
+ ret = (chipcode == AX_AX88772_CHIPCODE) ? ax88772_hw_reset(dev, 0) :
+ ax88772a_hw_reset(dev, 0);
+
+ if (ret < 0) {
+ netdev_dbg(dev->net, "Failed to reset AX88772: %d\n", ret);
+ return ret;
+ }

/* Read PHYID register *AFTER* the PHY was reset properly */
phyid = asix_get_phyid(dev);
diff --git a/drivers/scsi/csiostor/csio_attr.c b/drivers/scsi/csiostor/csio_attr.c
index 2d1c4ebd40f9..6587f20cff1a 100644
--- a/drivers/scsi/csiostor/csio_attr.c
+++ b/drivers/scsi/csiostor/csio_attr.c
@@ -582,12 +582,12 @@ csio_vport_create(struct fc_vport *fc_vport, bool disable)
}

fc_vport_set_state(fc_vport, FC_VPORT_INITIALIZING);
+ ln->fc_vport = fc_vport;

if (csio_fcoe_alloc_vnp(hw, ln))
goto error;

*(struct csio_lnode **)fc_vport->dd_data = ln;
- ln->fc_vport = fc_vport;
if (!fc_vport->node_name)
fc_vport->node_name = wwn_to_u64(csio_ln_wwnn(ln));
if (!fc_vport->port_name)
diff --git a/drivers/scsi/libsas/sas_expander.c b/drivers/scsi/libsas/sas_expander.c
index 12886f96b286..7be581f7c35d 100644
--- a/drivers/scsi/libsas/sas_expander.c
+++ b/drivers/scsi/libsas/sas_expander.c
@@ -818,6 +818,7 @@ static struct domain_device *sas_ex_discover_end_dev(
rphy = sas_end_device_alloc(phy->port);
if (!rphy)
goto out_free;
+ rphy->identify.phy_identifier = phy_id;

child->rphy = rphy;
get_device(&rphy->dev);
@@ -845,6 +846,7 @@ static struct domain_device *sas_ex_discover_end_dev(

child->rphy = rphy;
get_device(&rphy->dev);
+ rphy->identify.phy_identifier = phy_id;
sas_fill_in_rphy(child, rphy);

list_add_tail(&child->disco_list_node, &parent->port->disco_list);
diff --git a/drivers/thermal/int340x_thermal/processor_thermal_device.c b/drivers/thermal/int340x_thermal/processor_thermal_device.c
index ff3b36f339e3..1fdf6fd24cdf 100644
--- a/drivers/thermal/int340x_thermal/processor_thermal_device.c
+++ b/drivers/thermal/int340x_thermal/processor_thermal_device.c
@@ -77,7 +77,12 @@ static ssize_t power_limit_##index##_##suffix##_show(struct device *dev, \
struct pci_dev *pci_dev; \
struct platform_device *pdev; \
struct proc_thermal_device *proc_dev; \
-\
+ \
+ if (proc_thermal_emum_mode == PROC_THERMAL_NONE) { \
+ dev_warn(dev, "Attempted to get power limit before device was initialized!\n"); \
+ return 0; \
+ } \
+ \
if (proc_thermal_emum_mode == PROC_THERMAL_PLATFORM_DEV) { \
pdev = to_platform_device(dev); \
proc_dev = platform_get_drvdata(pdev); \
@@ -291,11 +296,6 @@ static int proc_thermal_add(struct device *dev,
*priv = proc_priv;

ret = proc_thermal_read_ppcc(proc_priv);
- if (!ret) {
- ret = sysfs_create_group(&dev->kobj,
- &power_limit_attribute_group);
-
- }
if (ret)
return ret;

@@ -309,8 +309,7 @@ static int proc_thermal_add(struct device *dev,

proc_priv->int340x_zone = int340x_thermal_zone_add(adev, ops);
if (IS_ERR(proc_priv->int340x_zone)) {
- ret = PTR_ERR(proc_priv->int340x_zone);
- goto remove_group;
+ return PTR_ERR(proc_priv->int340x_zone);
} else
ret = 0;

@@ -324,9 +323,6 @@ static int proc_thermal_add(struct device *dev,

remove_zone:
int340x_thermal_zone_remove(proc_priv->int340x_zone);
-remove_group:
- sysfs_remove_group(&proc_priv->dev->kobj,
- &power_limit_attribute_group);

return ret;
}
@@ -357,7 +353,10 @@ static int int3401_add(struct platform_device *pdev)
platform_set_drvdata(pdev, proc_priv);
proc_thermal_emum_mode = PROC_THERMAL_PLATFORM_DEV;

- return 0;
+ dev_info(&pdev->dev, "Creating sysfs group for PROC_THERMAL_PLATFORM_DEV\n");
+
+ return sysfs_create_group(&pdev->dev.kobj,
+ &power_limit_attribute_group);
}

static int int3401_remove(struct platform_device *pdev)
@@ -416,7 +415,7 @@ static int proc_thermal_pci_probe(struct pci_dev *pdev,
proc_priv->soc_dts = intel_soc_dts_iosf_init(
INTEL_SOC_DTS_INTERRUPT_MSI, 2, 0);

- if (proc_priv->soc_dts && pdev->irq) {
+ if (!IS_ERR(proc_priv->soc_dts) && pdev->irq) {
ret = pci_enable_msi(pdev);
if (!ret) {
ret = request_threaded_irq(pdev->irq, NULL,
@@ -434,7 +433,10 @@ static int proc_thermal_pci_probe(struct pci_dev *pdev,
dev_err(&pdev->dev, "No auxiliary DTSs enabled\n");
}

- return 0;
+ dev_info(&pdev->dev, "Creating sysfs group for PROC_THERMAL_PCI\n");
+
+ return sysfs_create_group(&pdev->dev.kobj,
+ &power_limit_attribute_group);
}

static void proc_thermal_pci_remove(struct pci_dev *pdev)
diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c
index 5c471c3481bd..800996522fdc 100644
--- a/drivers/tty/serial/fsl_lpuart.c
+++ b/drivers/tty/serial/fsl_lpuart.c
@@ -1494,7 +1494,7 @@ lpuart32_set_termios(struct uart_port *port, struct ktermios *termios,
}

/* ask the core to calculate the divisor */
- baud = uart_get_baud_rate(port, termios, old, 50, port->uartclk / 16);
+ baud = uart_get_baud_rate(port, termios, old, 50, port->uartclk / 4);

spin_lock_irqsave(&sport->port.lock, flags);

diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index ed6b9bfe3759..712bd450f857 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -1705,6 +1705,7 @@ static int __dwc3_gadget_start(struct dwc3 *dwc)

/* begin to receive SETUP packets */
dwc->ep0state = EP0_SETUP_PHASE;
+ dwc->link_state = DWC3_LINK_STATE_SS_DIS;
dwc3_ep0_out_start(dwc);

dwc3_gadget_enable_irq(dwc);
@@ -3096,6 +3097,8 @@ int dwc3_gadget_suspend(struct dwc3 *dwc)
dwc3_disconnect_gadget(dwc);
__dwc3_gadget_stop(dwc);

+ synchronize_irq(dwc->irq_gadget);
+
return 0;
}

diff --git a/drivers/usb/gadget/function/f_sourcesink.c b/drivers/usb/gadget/function/f_sourcesink.c
index 8784fa12ea2c..6e9d958004a0 100644
--- a/drivers/usb/gadget/function/f_sourcesink.c
+++ b/drivers/usb/gadget/function/f_sourcesink.c
@@ -842,7 +842,7 @@ static struct usb_function *source_sink_alloc_func(

ss = kzalloc(sizeof(*ss), GFP_KERNEL);
if (!ss)
- return NULL;
+ return ERR_PTR(-ENOMEM);

ss_opts = container_of(fi, struct f_ss_opts, func_inst);

diff --git a/fs/direct-io.c b/fs/direct-io.c
index 07cc38ec66ca..fc90f0c33cbe 100644
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -616,6 +616,7 @@ static int get_more_blocks(struct dio *dio, struct dio_submit *sdio,
unsigned long fs_count; /* Number of filesystem-sized blocks */
int create;
unsigned int i_blkbits = sdio->blkbits + sdio->blkfactor;
+ loff_t i_size;

/*
* If there was a memory error and we've overwritten all the
@@ -645,8 +646,8 @@ static int get_more_blocks(struct dio *dio, struct dio_submit *sdio,
*/
create = dio->op == REQ_OP_WRITE;
if (dio->flags & DIO_SKIP_HOLES) {
- if (fs_startblk <= ((i_size_read(dio->inode) - 1) >>
- i_blkbits))
+ i_size = i_size_read(dio->inode);
+ if (i_size && fs_startblk <= (i_size - 1) >> i_blkbits)
create = 0;
}

diff --git a/kernel/locking/rwsem-xadd.c b/kernel/locking/rwsem-xadd.c
index a4112dfcd0fb..be06c45cbe4f 100644
--- a/kernel/locking/rwsem-xadd.c
+++ b/kernel/locking/rwsem-xadd.c
@@ -195,15 +195,22 @@ static void __rwsem_mark_wake(struct rw_semaphore *sem,
woken++;
tsk = waiter->task;

- wake_q_add(wake_q, tsk);
+ get_task_struct(tsk);
list_del(&waiter->list);
/*
- * Ensure that the last operation is setting the reader
+ * Ensure calling get_task_struct() before setting the reader
* waiter to nil such that rwsem_down_read_failed() cannot
* race with do_exit() by always holding a reference count
* to the task to wakeup.
*/
smp_store_release(&waiter->task, NULL);
+ /*
+ * Ensure issuing the wakeup (either by us or someone else)
+ * after setting the reader waiter to nil.
+ */
+ wake_q_add(wake_q, tsk);
+ /* wake_q_add() already take the task ref */
+ put_task_struct(tsk);
}

adjustment = woken * RWSEM_ACTIVE_READ_BIAS - adjustment;
diff --git a/mm/mmap.c b/mm/mmap.c
index 283755645d17..3f2314ad6acd 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -2345,12 +2345,11 @@ int expand_downwards(struct vm_area_struct *vma,
struct mm_struct *mm = vma->vm_mm;
struct vm_area_struct *prev;
unsigned long gap_addr;
- int error;
+ int error = 0;

address &= PAGE_MASK;
- error = security_mmap_addr(address);
- if (error)
- return error;
+ if (address < mmap_min_addr)
+ return -EPERM;

/* Enforce stack_guard_gap */
gap_addr = address - stack_guard_gap;
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 6ef9d32c34f1..954315e1661d 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1425,6 +1425,10 @@ static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
sta->sta.tdls = true;

+ if (sta->sta.tdls && sdata->vif.type == NL80211_IFTYPE_STATION &&
+ !sdata->u.mgd.associated)
+ return -EINVAL;
+
err = sta_apply_parameters(local, sta, params);
if (err) {
sta_info_free(local, sta);
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index af02d2136a06..23f6c8baae95 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -217,7 +217,7 @@ static void ieee80211_handle_mu_mimo_mon(struct ieee80211_sub_if_data *sdata,
struct ieee80211_hdr_3addr hdr;
u8 category;
u8 action_code;
- } __packed action;
+ } __packed __aligned(2) action;

if (!sdata)
return;
@@ -2510,7 +2510,9 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
skb_set_queue_mapping(skb, q);

if (!--mesh_hdr->ttl) {
- IEEE80211_IFSTA_MESH_CTR_INC(ifmsh, dropped_frames_ttl);
+ if (!is_multicast_ether_addr(hdr->addr1))
+ IEEE80211_IFSTA_MESH_CTR_INC(ifmsh,
+ dropped_frames_ttl);
goto out;
}

diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 36d1d25082e3..7c19d0d2549b 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -773,7 +773,7 @@ static bool reg_does_bw_fit(const struct ieee80211_freq_range *freq_range,
* definitions (the "2.4 GHz band", the "5 GHz band" and the "60GHz band"),
* however it is safe for now to assume that a frequency rule should not be
* part of a frequency's band if the start freq or end freq are off by more
- * than 2 GHz for the 2.4 and 5 GHz bands, and by more than 10 GHz for the
+ * than 2 GHz for the 2.4 and 5 GHz bands, and by more than 20 GHz for the
* 60 GHz band.
* This resolution can be lowered and should be considered as we add
* regulatory rule support for other "bands".
@@ -788,7 +788,7 @@ static bool freq_in_rule_band(const struct ieee80211_freq_range *freq_range,
* with the Channel starting frequency above 45 GHz.
*/
u32 limit = freq_khz > 45 * ONE_GHZ_IN_KHZ ?
- 10 * ONE_GHZ_IN_KHZ : 2 * ONE_GHZ_IN_KHZ;
+ 20 * ONE_GHZ_IN_KHZ : 2 * ONE_GHZ_IN_KHZ;
if (abs(freq_khz - freq_range->start_freq_khz) <= limit)
return true;
if (abs(freq_khz - freq_range->end_freq_khz) <= limit)
diff --git a/sound/core/compress_offload.c b/sound/core/compress_offload.c
index 4490a699030b..555df64d46ff 100644
--- a/sound/core/compress_offload.c
+++ b/sound/core/compress_offload.c
@@ -529,7 +529,8 @@ static int snd_compress_check_input(struct snd_compr_params *params)
{
/* first let's check the buffer parameter's */
if (params->buffer.fragment_size == 0 ||
- params->buffer.fragments > INT_MAX / params->buffer.fragment_size)
+ params->buffer.fragments > INT_MAX / params->buffer.fragment_size ||
+ params->buffer.fragments == 0)
return -EINVAL;

/* now codec parameters */
diff --git a/sound/soc/fsl/imx-audmux.c b/sound/soc/fsl/imx-audmux.c
index fc57da341d61..136df38c4536 100644
--- a/sound/soc/fsl/imx-audmux.c
+++ b/sound/soc/fsl/imx-audmux.c
@@ -86,49 +86,49 @@ static ssize_t audmux_read_file(struct file *file, char __user *user_buf,
if (!buf)
return -ENOMEM;

- ret = snprintf(buf, PAGE_SIZE, "PDCR: %08x\nPTCR: %08x\n",
+ ret = scnprintf(buf, PAGE_SIZE, "PDCR: %08x\nPTCR: %08x\n",
pdcr, ptcr);

if (ptcr & IMX_AUDMUX_V2_PTCR_TFSDIR)
- ret += snprintf(buf + ret, PAGE_SIZE - ret,
+ ret += scnprintf(buf + ret, PAGE_SIZE - ret,
"TxFS output from %s, ",
audmux_port_string((ptcr >> 27) & 0x7));
else
- ret += snprintf(buf + ret, PAGE_SIZE - ret,
+ ret += scnprintf(buf + ret, PAGE_SIZE - ret,
"TxFS input, ");

if (ptcr & IMX_AUDMUX_V2_PTCR_TCLKDIR)
- ret += snprintf(buf + ret, PAGE_SIZE - ret,
+ ret += scnprintf(buf + ret, PAGE_SIZE - ret,
"TxClk output from %s",
audmux_port_string((ptcr >> 22) & 0x7));
else
- ret += snprintf(buf + ret, PAGE_SIZE - ret,
+ ret += scnprintf(buf + ret, PAGE_SIZE - ret,
"TxClk input");

- ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n");
+ ret += scnprintf(buf + ret, PAGE_SIZE - ret, "\n");

if (ptcr & IMX_AUDMUX_V2_PTCR_SYN) {
- ret += snprintf(buf + ret, PAGE_SIZE - ret,
+ ret += scnprintf(buf + ret, PAGE_SIZE - ret,
"Port is symmetric");
} else {
if (ptcr & IMX_AUDMUX_V2_PTCR_RFSDIR)
- ret += snprintf(buf + ret, PAGE_SIZE - ret,
+ ret += scnprintf(buf + ret, PAGE_SIZE - ret,
"RxFS output from %s, ",
audmux_port_string((ptcr >> 17) & 0x7));
else
- ret += snprintf(buf + ret, PAGE_SIZE - ret,
+ ret += scnprintf(buf + ret, PAGE_SIZE - ret,
"RxFS input, ");

if (ptcr & IMX_AUDMUX_V2_PTCR_RCLKDIR)
- ret += snprintf(buf + ret, PAGE_SIZE - ret,
+ ret += scnprintf(buf + ret, PAGE_SIZE - ret,
"RxClk output from %s",
audmux_port_string((ptcr >> 12) & 0x7));
else
- ret += snprintf(buf + ret, PAGE_SIZE - ret,
+ ret += scnprintf(buf + ret, PAGE_SIZE - ret,
"RxClk input");
}

- ret += snprintf(buf + ret, PAGE_SIZE - ret,
+ ret += scnprintf(buf + ret, PAGE_SIZE - ret,
"\nData received from %s\n",
audmux_port_string((pdcr >> 13) & 0x7));

diff --git a/sound/soc/intel/boards/broadwell.c b/sound/soc/intel/boards/broadwell.c
index 7486a0022fde..993d2c105ae1 100644
--- a/sound/soc/intel/boards/broadwell.c
+++ b/sound/soc/intel/boards/broadwell.c
@@ -191,7 +191,7 @@ static struct snd_soc_dai_link broadwell_rt286_dais[] = {
.stream_name = "Loopback",
.cpu_dai_name = "Loopback Pin",
.platform_name = "haswell-pcm-audio",
- .dynamic = 0,
+ .dynamic = 1,
.codec_name = "snd-soc-dummy",
.codec_dai_name = "snd-soc-dummy-dai",
.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
diff --git a/sound/soc/intel/boards/haswell.c b/sound/soc/intel/boards/haswell.c
index 863f1d5e2a2c..11d0cc2b0e39 100644
--- a/sound/soc/intel/boards/haswell.c
+++ b/sound/soc/intel/boards/haswell.c
@@ -145,7 +145,7 @@ static struct snd_soc_dai_link haswell_rt5640_dais[] = {
.stream_name = "Loopback",
.cpu_dai_name = "Loopback Pin",
.platform_name = "haswell-pcm-audio",
- .dynamic = 0,
+ .dynamic = 1,
.codec_name = "snd-soc-dummy",
.codec_dai_name = "snd-soc-dummy-dai",
.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 8bfc534e3b34..ab647f1fe11b 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -1976,19 +1976,19 @@ static ssize_t dapm_widget_power_read_file(struct file *file,
out = is_connected_output_ep(w, NULL, NULL);
}

- ret = snprintf(buf, PAGE_SIZE, "%s: %s%s in %d out %d",
+ ret = scnprintf(buf, PAGE_SIZE, "%s: %s%s in %d out %d",
w->name, w->power ? "On" : "Off",
w->force ? " (forced)" : "", in, out);

if (w->reg >= 0)
- ret += snprintf(buf + ret, PAGE_SIZE - ret,
+ ret += scnprintf(buf + ret, PAGE_SIZE - ret,
" - R%d(0x%x) mask 0x%x",
w->reg, w->reg, w->mask << w->shift);

- ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n");
+ ret += scnprintf(buf + ret, PAGE_SIZE - ret, "\n");

if (w->sname)
- ret += snprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n",
+ ret += scnprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n",
w->sname,
w->active ? "active" : "inactive");

@@ -2001,7 +2001,7 @@ static ssize_t dapm_widget_power_read_file(struct file *file,
if (!p->connect)
continue;

- ret += snprintf(buf + ret, PAGE_SIZE - ret,
+ ret += scnprintf(buf + ret, PAGE_SIZE - ret,
" %s \"%s\" \"%s\"\n",
(rdir == SND_SOC_DAPM_DIR_IN) ? "in" : "out",
p->name ? p->name : "static",