From 3117beec7e43f91ce156cacf033a712c7e22737d Mon Sep 17 00:00:00 2001 From: Michael Krufky Date: Wed, 19 Jul 2006 13:23:38 -0300 Subject: 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 Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/videodev.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) (limited to 'drivers/media/video/videodev.c') diff --git a/drivers/media/video/videodev.c b/drivers/media/video/videodev.c index b26ebaff226f..4c3f92605a82 100644 --- a/drivers/media/video/videodev.c +++ b/drivers/media/video/videodev.c @@ -1512,6 +1512,7 @@ int video_register_device(struct video_device *vfd, int type, int nr) int i=0; int base; int end; + int ret; char *name_base; switch(type) @@ -1571,9 +1572,13 @@ int video_register_device(struct video_device *vfd, int type, int nr) vfd->class_dev.class = &video_class; vfd->class_dev.devt = MKDEV(VIDEO_MAJOR, vfd->minor); sprintf(vfd->class_dev.class_id, "%s%d", name_base, i - base); - class_device_register(&vfd->class_dev); - class_device_create_file(&vfd->class_dev, - &class_device_attr_name); + ret = class_device_register(&vfd->class_dev); + if (ret) { + printk(KERN_ERR "%s: class_device_register failed\n", + __FUNCTION__); + return ret; + } + video_device_create_file(vfd, &class_device_attr_name); #if 1 /* needed until all drivers are fixed */ -- cgit v1.2.3