[PATCH] HID: usbhid: Use pr_<level> and remove unnecessary OOM messages

From: Joe Perches
Date: Wed Mar 01 2017 - 20:35:57 EST


Use a more common logging style and remove the unnecessary
OOM messages as there is default dump_stack when OOM.

Miscellanea:

o Hoist an assignment in an if
o Realign arguments
o Realign a deeply indented if descendent above a printk

Signed-off-by: Joe Perches <joe@xxxxxxxxxxx>
---
drivers/hid/usbhid/hid-core.c | 16 +++++++---------
drivers/hid/usbhid/hid-quirks.c | 11 ++++-------
2 files changed, 11 insertions(+), 16 deletions(-)

diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c
index 961bc6fdd2d9..cd98db6cf94f 100644
--- a/drivers/hid/usbhid/hid-core.c
+++ b/drivers/hid/usbhid/hid-core.c
@@ -1004,10 +1004,9 @@ static int usbhid_parse(struct hid_device *hid)
return -EINVAL;
}

- if (!(rdesc = kmalloc(rsize, GFP_KERNEL))) {
- dbg_hid("couldn't allocate rdesc memory\n");
+ rdesc = kmalloc(rsize, GFP_KERNEL);
+ if (!rdesc)
return -ENOMEM;
- }

hid_set_idle(dev, interface->desc.bInterfaceNumber, 0, 0);

@@ -1077,8 +1076,8 @@ static int usbhid_start(struct hid_device *hid)
if (hid->quirks & HID_QUIRK_FULLSPEED_INTERVAL &&
dev->speed == USB_SPEED_HIGH) {
interval = fls(endpoint->bInterval*8);
- printk(KERN_INFO "%s: Fixing fullspeed to highspeed interval: %d -> %d\n",
- hid->name, endpoint->bInterval, interval);
+ pr_info("%s: Fixing fullspeed to highspeed interval: %d -> %d\n",
+ hid->name, endpoint->bInterval, interval);
}

/* Change the polling interval of mice. */
@@ -1456,10 +1455,9 @@ static int hid_post_reset(struct usb_interface *intf)
* the size of the HID report descriptor has not changed.
*/
rdesc = kmalloc(hid->dev_rsize, GFP_KERNEL);
- if (!rdesc) {
- dbg_hid("couldn't allocate rdesc memory (post_reset)\n");
+ if (!rdesc)
return -ENOMEM;
- }
+
status = hid_get_class_descriptor(dev,
interface->desc.bInterfaceNumber,
HID_DT_REPORT, rdesc, hid->dev_rsize);
@@ -1637,7 +1635,7 @@ static int __init hid_init(void)
retval = usb_register(&hid_driver);
if (retval)
goto usb_register_fail;
- printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_DESC "\n");
+ pr_info(KBUILD_MODNAME ": " DRIVER_DESC "\n");

return 0;
usb_register_fail:
diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c
index d6847a664446..9287ab03e117 100644
--- a/drivers/hid/usbhid/hid-quirks.c
+++ b/drivers/hid/usbhid/hid-quirks.c
@@ -237,10 +237,8 @@ static int usbhid_modify_dquirk(const u16 idVendor, const u16 idProduct,
}

q_new = kmalloc(sizeof(struct quirks_list_struct), GFP_KERNEL);
- if (!q_new) {
- dbg_hid("Could not allocate quirks_list_struct\n");
+ if (!q_new)
return -ENOMEM;
- }

q_new->hid_bl_item.idVendor = idVendor;
q_new->hid_bl_item.idProduct = idProduct;
@@ -306,10 +304,9 @@ int usbhid_quirks_init(char **quirks_param)
&idVendor, &idProduct, &quirks);

if (m != 3 ||
- usbhid_modify_dquirk(idVendor, idProduct, quirks) != 0) {
- printk(KERN_WARNING
- "Could not parse HID quirk module param %s\n",
- quirks_param[n]);
+ usbhid_modify_dquirk(idVendor, idProduct, quirks) != 0) {
+ pr_warn("Could not parse HID quirk module param %s\n",
+ quirks_param[n]);
}
}

--
2.10.0.rc2.1.g053435c