[PATCH] device_attributes: add sysfs_attr_init() for dynamic attributes
From: Wolfram Sang
Date: Mon Mar 22 2010 - 02:25:38 EST
Made necessary by 6992f5334995af474c2b58d010d08bc597f0f2fe.
Found by this semantic patch:
@ init @
type T;
identifier A;
@@
T {
...
struct device_attribute A;
...
};
@ main extends init @
expression E;
statement S;
identifier err;
T *name;
@@
... when != sysfs_attr_init(&name->A.attr);
(
+ sysfs_attr_init(&name->A.attr);
if (device_create_file(E, &name->A))
S
|
+ sysfs_attr_init(&name->A.attr);
err = device_create_file(E, &name->A);
)
While reviewing, I put the initialization to apropriate places.
Signed-off-by: Wolfram Sang <w.sang@xxxxxxxxxxxxxx>
Cc: Eric W. Biederman <ebiederm@xxxxxxxxxxxx>
Cc: Greg KH <gregkh@xxxxxxx>
Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Cc: Mike Isely <isely@xxxxxxxxx>
Cc: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxx>
Cc: Sujith Thomas <sujith.thomas@xxxxxxxxx>
Cc: Matthew Garrett <mjg@xxxxxxxxxx>
---
The thermal-sys.c-part should fix bugs #15548 and #15584.
drivers/macintosh/windfarm_core.c | 1 +
drivers/media/video/pvrusb2/pvrusb2-sysfs.c | 8 ++++++++
drivers/platform/x86/intel_menlow.c | 1 +
drivers/thermal/thermal_sys.c | 1 +
drivers/video/fsl-diu-fb.c | 1 +
5 files changed, 12 insertions(+), 0 deletions(-)
diff --git a/drivers/macintosh/windfarm_core.c b/drivers/macintosh/windfarm_core.c
index 419795f..f447642 100644
--- a/drivers/macintosh/windfarm_core.c
+++ b/drivers/macintosh/windfarm_core.c
@@ -209,6 +209,7 @@ int wf_register_control(struct wf_control *new_ct)
kref_init(&new_ct->ref);
list_add(&new_ct->link, &wf_controls);
+ sysfs_attr_init(&new_ct->attr.attr);
new_ct->attr.attr.name = new_ct->name;
new_ct->attr.attr.mode = 0644;
new_ct->attr.show = wf_show_control;
diff --git a/drivers/media/video/pvrusb2/pvrusb2-sysfs.c b/drivers/media/video/pvrusb2/pvrusb2-sysfs.c
index 6c23456..71f5056 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-sysfs.c
+++ b/drivers/media/video/pvrusb2/pvrusb2-sysfs.c
@@ -423,10 +423,12 @@ static void pvr2_sysfs_add_debugifc(struct pvr2_sysfs *sfp)
dip = kzalloc(sizeof(*dip),GFP_KERNEL);
if (!dip) return;
+ sysfs_attr_init(&dip->attr_debugcmd.attr);
dip->attr_debugcmd.attr.name = "debugcmd";
dip->attr_debugcmd.attr.mode = S_IRUGO|S_IWUSR|S_IWGRP;
dip->attr_debugcmd.show = debugcmd_show;
dip->attr_debugcmd.store = debugcmd_store;
+ sysfs_attr_init(&dip->attr_debuginfo.attr);
dip->attr_debuginfo.attr.name = "debuginfo";
dip->attr_debuginfo.attr.mode = S_IRUGO;
dip->attr_debuginfo.show = debuginfo_show;
@@ -644,6 +646,7 @@ static void class_dev_create(struct pvr2_sysfs *sfp,
return;
}
+ sysfs_attr_init(&sfp->attr_v4l_minor_number.attr);
sfp->attr_v4l_minor_number.attr.name = "v4l_minor_number";
sfp->attr_v4l_minor_number.attr.mode = S_IRUGO;
sfp->attr_v4l_minor_number.show = v4l_minor_number_show;
@@ -658,6 +661,7 @@ static void class_dev_create(struct pvr2_sysfs *sfp,
sfp->v4l_minor_number_created_ok = !0;
}
+ sysfs_attr_init(&sfp->attr_v4l_radio_minor_number.attr);
sfp->attr_v4l_radio_minor_number.attr.name = "v4l_radio_minor_number";
sfp->attr_v4l_radio_minor_number.attr.mode = S_IRUGO;
sfp->attr_v4l_radio_minor_number.show = v4l_radio_minor_number_show;
@@ -672,6 +676,7 @@ static void class_dev_create(struct pvr2_sysfs *sfp,
sfp->v4l_radio_minor_number_created_ok = !0;
}
+ sysfs_attr_init(&sfp->attr_unit_number.attr);
sfp->attr_unit_number.attr.name = "unit_number";
sfp->attr_unit_number.attr.mode = S_IRUGO;
sfp->attr_unit_number.show = unit_number_show;
@@ -685,6 +690,7 @@ static void class_dev_create(struct pvr2_sysfs *sfp,
sfp->unit_number_created_ok = !0;
}
+ sysfs_attr_init(&sfp->attr_bus_info.attr);
sfp->attr_bus_info.attr.name = "bus_info_str";
sfp->attr_bus_info.attr.mode = S_IRUGO;
sfp->attr_bus_info.show = bus_info_show;
@@ -699,6 +705,7 @@ static void class_dev_create(struct pvr2_sysfs *sfp,
sfp->bus_info_created_ok = !0;
}
+ sysfs_attr_init(&sfp->attr_hdw_name.attr);
sfp->attr_hdw_name.attr.name = "device_hardware_type";
sfp->attr_hdw_name.attr.mode = S_IRUGO;
sfp->attr_hdw_name.show = hdw_name_show;
@@ -713,6 +720,7 @@ static void class_dev_create(struct pvr2_sysfs *sfp,
sfp->hdw_name_created_ok = !0;
}
+ sysfs_attr_init(&sfp->attr_hdw_desc.attr);
sfp->attr_hdw_desc.attr.name = "device_hardware_description";
sfp->attr_hdw_desc.attr.mode = S_IRUGO;
sfp->attr_hdw_desc.show = hdw_desc_show;
diff --git a/drivers/platform/x86/intel_menlow.c b/drivers/platform/x86/intel_menlow.c
index f0a90a6..90ba5d7 100644
--- a/drivers/platform/x86/intel_menlow.c
+++ b/drivers/platform/x86/intel_menlow.c
@@ -396,6 +396,7 @@ static int intel_menlow_add_one_attribute(char *name, int mode, void *show,
if (!attr)
return -ENOMEM;
+ sysfs_attr_init(&attr->attr.attr); /* That's consistent naming :D */
attr->attr.attr.name = name;
attr->attr.attr.mode = mode;
attr->attr.show = show;
diff --git a/drivers/thermal/thermal_sys.c b/drivers/thermal/thermal_sys.c
index 5066de5..d4fec47 100644
--- a/drivers/thermal/thermal_sys.c
+++ b/drivers/thermal/thermal_sys.c
@@ -725,6 +725,7 @@ int thermal_zone_bind_cooling_device(struct thermal_zone_device *tz,
goto release_idr;
sprintf(dev->attr_name, "cdev%d_trip_point", dev->id);
+ sysfs_attr_init(&dev->attr.attr);
dev->attr.attr.name = dev->attr_name;
dev->attr.attr.mode = 0444;
dev->attr.show = thermal_cooling_device_trip_point_show;
diff --git a/drivers/video/fsl-diu-fb.c b/drivers/video/fsl-diu-fb.c
index 4637bcb..994358a 100644
--- a/drivers/video/fsl-diu-fb.c
+++ b/drivers/video/fsl-diu-fb.c
@@ -1536,6 +1536,7 @@ static int __devinit fsl_diu_probe(struct of_device *ofdev,
goto error;
}
+ sysfs_attr_init(&machine_data->dev_attr.attr);
machine_data->dev_attr.attr.name = "monitor";
machine_data->dev_attr.attr.mode = S_IRUGO|S_IWUSR;
machine_data->dev_attr.show = show_monitor;
--
1.7.0
--
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