Axel Thimm wrote:
> latest hg fails on > 2.6.17 due to video_device_create_file being void
> but still being asked for a return value in bttv-driver.c
>
> linux/drivers/media/video/bt8xx/bttv-driver.c:
>
> 3963 #if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)
> 3964 ret = video_device_create_file(btv->video_dev, &class_device_attr_card);
> 3965 if (ret < 0)
>
>
> linux/include/media/v4l2-dev.h:
>
> 379 static inline void
> 380 video_device_create_file(struct video_device *vfd,
> 381 struct class_device_attribute *attr)
> 382 {
>
> CC [M] /builddir/video4linux-20060717/v4l/flexcop-dma.o
> CC [M] /builddir/video4linux-20060717/v4l/bttv-driver.o
> /builddir/video4linux-20060717/v4l/bttv-driver.c: In function 'bttv_register_video':
> /builddir/video4linux-20060717/v4l/bttv-driver.c:3964: error: void value not ignored as it ought to be
> /builddir/video4linux-20060717/v4l/bttv-driver.c: In function 'bttv_probe':
> /builddir/video4linux-20060717/v4l/bttv-driver.c:4074: warning: format '%lx' expects type 'long unsigned int', but argument 3 has type 'resource_size_t'
> /builddir/video4linux-20060717/v4l/bttv-driver.c:4086: warning: format '%lx' expects type 'long unsigned int', but argument 4 has type 'resource_size_t'
> make[3]: *** [/builddir/video4linux-20060717/v4l/bttv-driver.o] Error 1
Hmmm... This was caused by the "Check all __must_check warnings in
bttv." patch from Randy Dunlap (cc's from original thread added)
I am aware that this was done for various reasons of sanity checking,
however, we cannot check the return value of a void ;-)
-Mike
--
Michael Krufky
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