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- #ifdef out the cliplist part, skype seems like using an uninitialized

Browse source 
variable and can cause problems, without the cliplist handling it works
  without problems
- improve the cliplist error handling
- fix VIDIOCGTUNER and VIDIOCSMICROCODE (still no hardware available to test)

Submitted by:	J.R. Oldroyd <jr@opal.com>
X-MFC after:	soon (together with all the v4l stuff)
This commit is contained in:
Alexander Leidinger 2010-05-03 14:19:58 +00:00
parent f93beda98a
commit eddc400373
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=207569
1 changed files with 24 additions and 7 deletions
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31
sys/compat/linux/linux_ioctl.c
View file

@ -2628,6 +2628,7 @@ bsd_to_linux_v4l_tuner(struct video_tuner *vt, struct l_video_tuner *lvt)
return (0);
}
#ifdef COMPAT_LINUX_V4L_CLIPLIST
static int
linux_to_bsd_v4l_clip(struct l_video_clip *lvc, struct video_clip *vc)
{
@ -2638,6 +2639,7 @@ linux_to_bsd_v4l_clip(struct l_video_clip *lvc, struct video_clip *vc)
vc->next = PTRIN(lvc->next); /* possible pointer size conversion */
return (0);
}
#endif
static int
linux_to_bsd_v4l_window(struct l_video_window *lvw, struct video_window *vw)
@ -2698,6 +2700,7 @@ linux_to_bsd_v4l_code(struct l_video_code *lvc, struct video_code *vc)
return (0);
}
#ifdef COMPAT_LINUX_V4L_CLIPLIST
static int
linux_v4l_clip_copy(void *lvc, struct video_clip **ppvc)
{
@ -2772,15 +2775,18 @@ linux_v4l_cliplist_copy(struct l_video_window *lvw, struct video_window *vw)
* example of cliplist use.
*/
plvc = PTRIN(lvw->clips);
vw->clips = NULL;
ppvc = &(vw->clips);
while (clipcount-- > 0) {
if (plvc == 0)
if (plvc == 0) {
error = EFAULT;
if (!error)
error = linux_v4l_clip_copy(plvc, ppvc);
if (error) {
linux_v4l_cliplist_free(vw);
break;
} else {
error = linux_v4l_clip_copy(plvc, ppvc);
if (error) {
linux_v4l_cliplist_free(vw);
break;
}
}
ppvc = &((*ppvc)->next);
plvc = PTRIN(((struct l_video_clip *) plvc)->next);
@ -2795,6 +2801,7 @@ linux_v4l_cliplist_copy(struct l_video_window *lvw, struct video_window *vw)
}
return (error);
}
#endif
static int
linux_ioctl_v4l(struct thread *td, struct linux_ioctl_args *args)
@ -2818,6 +2825,12 @@ linux_ioctl_v4l(struct thread *td, struct linux_ioctl_args *args)
case LINUX_VIDIOCGTUNER:
if ((error = fget(td, args->fd, &fp)) != 0)
return (error);
error = copyin((void *) args->arg, &l_vtun, sizeof(l_vtun));
if (error) {
fdrop(fp, td);
return (error);
}
linux_to_bsd_v4l_tuner(&l_vtun, &vtun);
error = fo_ioctl(fp, VIDIOCGTUNER, &vtun, td->td_ucred, td);
if (!error) {
bsd_to_linux_v4l_tuner(&vtun, &l_vtun);
@ -2836,7 +2849,7 @@ linux_ioctl_v4l(struct thread *td, struct linux_ioctl_args *args)
return (error);
}
linux_to_bsd_v4l_tuner(&l_vtun, &vtun);
error = fo_ioctl(fp, VIDIOCSMICROCODE, &vtun, td->td_ucred, td);
error = fo_ioctl(fp, VIDIOCSTUNER, &vtun, td->td_ucred, td);
fdrop(fp, td);
return (error);
@ -2865,14 +2878,18 @@ linux_ioctl_v4l(struct thread *td, struct linux_ioctl_args *args)
return (error);
}
linux_to_bsd_v4l_window(&l_vwin, &vwin);
#ifdef COMPAT_LINUX_V4L_CLIPLIST
error = linux_v4l_cliplist_copy(&l_vwin, &vwin);
if (error) {
fdrop(fp, td);
return (error);
}
#endif
error = fo_ioctl(fp, VIDIOCSWIN, &vwin, td->td_ucred, td);
fdrop(fp, td);
#ifdef COMPAT_LINUX_V4L_CLIPLIST
linux_v4l_cliplist_free(&vwin);
#endif
return (error);
case LINUX_VIDIOCGFBUF:
@ -2924,7 +2941,7 @@ linux_ioctl_v4l(struct thread *td, struct linux_ioctl_args *args)
return (error);
}
linux_to_bsd_v4l_code(&l_vcode, &vcode);
error = fo_ioctl(fp, VIDIOCSTUNER, &vcode, td->td_ucred, td);
error = fo_ioctl(fp, VIDIOCSMICROCODE, &vcode, td->td_ucred, td);
fdrop(fp, td);
return (error);