Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-16 09:02:00 +00:00
Code Issues Packages Projects Releases Wiki Activity

drm: Fix ioc32 compat layer

Browse Source 
Previously any ioctls that weren't explicitly listed in the compat ioctl
table would fail with ENOTTY.  If the incoming ioctl number is outside the
range of the table, assume that it Just Works, and pass it off to drm_ioctl.
This make the fence related ioctls work on 64-bit PowerPC.

Signed-off-by: Dave Airlie <airlied@linux.ie>
This commit is contained in:
Ian Romanick 2007-11-22 17:02:08 +10:00 committed by Dave Airlie
parent 47a184a808
commit 7ffa05e051
1 changed files with 5 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/char/drm/drm_ioc32.c
View File

@ -1051,8 +1051,12 @@ long drm_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
drm_ioctl_compat_t *fn;
int ret;
/* Assume that ioctls without an explicit compat routine will just
* work. This may not always be a good assumption, but it's better
* than always failing.
*/
if (nr >= ARRAY_SIZE(drm_compat_ioctls))
return -ENOTTY;
return drm_ioctl(filp->f_dentry->d_inode, filp, cmd, arg);
fn = drm_compat_ioctls[nr];