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authorMichel Dänzer <daenzer@vmware.com>2009-05-20 13:32:00 +0200
committerJesse Barnes <jbarnes@virtuousgeek.org>2009-05-20 11:41:41 -0700
commit9b6fe313bfce27d4a261257da70196be0ac2bef5 (patch)
tree432b6e5b911a270c1bcf9d14f8e7f22125a523e2
parentb674137755bbe2750f997a2a1264db3cdf8abcb3 (diff)
drm: Copy back ioctl data to userspace regardless of return code.
Fixes a regression from commit 9d5b3ffc42f7820e8ee07705496955e4c2c38dd9 ('drm: fixup some of the ioctl function exit paths'): The vblank ioctl needs to update the userspace parameters when interrupted by a signal, which was prevented by the return code check. This could cause the X server to hang in drmWaitVBlank(). Signed-off-by: Michel Dänzer <daenzer@vmware.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
-rw-r--r--drivers/gpu/drm/drm_drv.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
index f01def16a669..019b7c578236 100644
--- a/drivers/gpu/drm/drm_drv.c
+++ b/drivers/gpu/drm/drm_drv.c
@@ -481,7 +481,7 @@ int drm_ioctl(struct inode *inode, struct file *filp,
}
retcode = func(dev, kdata, file_priv);
- if ((retcode == 0) && (cmd & IOC_OUT)) {
+ if (cmd & IOC_OUT) {
if (copy_to_user((void __user *)arg, kdata,
_IOC_SIZE(cmd)) != 0)
retcode = -EFAULT;

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