diff options
| author | Ilija Hadzic <ilijahadzic@gmail.com> | 2012-10-29 17:35:00 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-11-17 13:16:12 -0800 |
| commit | 47baf0d8ba90a5765f8f51130f9b20dc49ff6da4 (patch) | |
| tree | 5c9c9c7d2aa46eebfd3a1c934298cd7c421167ac | |
| parent | cde52501359fecbcb5832c77c49f11af2cfaa21b (diff) | |
drm: restore open_count if drm_setup fails
commit 0f1cb1bd94a9c967cd4ad3de51cfdabe61eb5dcc upstream.
If drm_setup (called at first open) fails, the whole
open call has failed, so we should not keep the
open_count incremented.
Signed-off-by: Ilija Hadzic <ihadzic@research.bell-labs.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/gpu/drm/drm_fops.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c index 123de28f94ef..b90abff19341 100644 --- a/drivers/gpu/drm/drm_fops.c +++ b/drivers/gpu/drm/drm_fops.c @@ -139,8 +139,11 @@ int drm_open(struct inode *inode, struct file *filp) retcode = drm_open_helper(inode, filp, dev); if (!retcode) { atomic_inc(&dev->counts[_DRM_STAT_OPENS]); - if (!dev->open_count++) + if (!dev->open_count++) { retcode = drm_setup(dev); + if (retcode) + dev->open_count--; + } } if (!retcode) { mutex_lock(&dev->struct_mutex); |