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authorMichael Krufky <mkrufky@linuxtv.org>2006-07-19 13:23:38 -0300
committerMauro Carvalho Chehab <mchehab@infradead.org>2006-07-29 17:22:21 -0300
commit3117beec7e43f91ce156cacf033a712c7e22737d (patch)
treee661e3bbd6ebcd5537bfb7e526d8bbc55a3b0ebc /include
parentd9cd2d9b61898354f5dbabdc490dd6ef309ebbd4 (diff)
V4L/DVB (4316): Check __must_check warnings
Check __must_check warnings for class_device_register and class_device_create_file video_device_create_file was declared as a void, but instead should return the int value of class_device_create_file. Move the check from bttv-driver.c into v4l2-dev.h, because all other callers of video_device_create_file must also be checked. Replace the call to class_device_create_file in videodev.c with video_device_create_file, as defined in v4l2-dev.h, so that the return value of class_device_create_file will be checked. Check the return value of class_device_register in videodev.c and pvrusb2-sysfs.c Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'include')
-rw-r--r--include/media/v4l2-dev.h7
1 files changed, 5 insertions, 2 deletions
diff --git a/include/media/v4l2-dev.h b/include/media/v4l2-dev.h
index 62dae1a8c44..f8665326ed9 100644
--- a/include/media/v4l2-dev.h
+++ b/include/media/v4l2-dev.h
@@ -341,11 +341,14 @@ extern int video_usercopy(struct inode *inode, struct file *file,
extern struct video_device* video_devdata(struct file*);
#define to_video_device(cd) container_of(cd, struct video_device, class_dev)
-static inline void
+static inline int
video_device_create_file(struct video_device *vfd,
struct class_device_attribute *attr)
{
- class_device_create_file(&vfd->class_dev, attr);
+ int ret = class_device_create_file(&vfd->class_dev, attr);
+ if (ret < 0)
+ printk(KERN_WARNING "%s error: %d\n", __FUNCTION__, ret);
+ return ret;
}
static inline void
video_device_remove_file(struct video_device *vfd,