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authorLinus Torvalds <torvalds@linux-foundation.org>2013-11-13 15:34:18 +0900
committerLinus Torvalds <torvalds@linux-foundation.org>2013-11-13 15:34:18 +0900
commit9bc9ccd7db1c9f043f75380b5a5b94912046a60e (patch)
treedd0a1b3396ae9414f668b0110cc39d11268ad3ed /drivers/gpu/drm
parentf0230294271f511b41797305b685365a9e569a09 (diff)
parentbdd3536618443809d18868563eeafa63b9d29603 (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs updates from Al Viro: "All kinds of stuff this time around; some more notable parts: - RCU'd vfsmounts handling - new primitives for coredump handling - files_lock is gone - Bruce's delegations handling series - exportfs fixes plus misc stuff all over the place" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (101 commits) ecryptfs: ->f_op is never NULL locks: break delegations on any attribute modification locks: break delegations on link locks: break delegations on rename locks: helper functions for delegation breaking locks: break delegations on unlink namei: minor vfs_unlink cleanup locks: implement delegations locks: introduce new FL_DELEG lock flag vfs: take i_mutex on renamed file vfs: rename I_MUTEX_QUOTA now that it's not used for quotas vfs: don't use PARENT/CHILD lock classes for non-directories vfs: pull ext4's double-i_mutex-locking into common code exportfs: fix quadratic behavior in filehandle lookup exportfs: better variable name exportfs: move most of reconnect_path to helper function exportfs: eliminate unused "noprogress" counter exportfs: stop retrying once we race with rename/remove exportfs: clear DISCONNECTED on all parents sooner exportfs: more detailed comment for path_reconnect ...
Diffstat (limited to 'drivers/gpu/drm')
-rw-r--r--drivers/gpu/drm/drm_fops.c17
1 files changed, 6 insertions, 11 deletions
diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c
index 3f84277d703..22d14ecbd3e 100644
--- a/drivers/gpu/drm/drm_fops.c
+++ b/drivers/gpu/drm/drm_fops.c
@@ -148,7 +148,7 @@ int drm_stub_open(struct inode *inode, struct file *filp)
struct drm_minor *minor;
int minor_id = iminor(inode);
int err = -ENODEV;
- const struct file_operations *old_fops;
+ const struct file_operations *new_fops;
DRM_DEBUG("\n");
@@ -163,18 +163,13 @@ int drm_stub_open(struct inode *inode, struct file *filp)
if (drm_device_is_unplugged(dev))
goto out;
- old_fops = filp->f_op;
- filp->f_op = fops_get(dev->driver->fops);
- if (filp->f_op == NULL) {
- filp->f_op = old_fops;
+ new_fops = fops_get(dev->driver->fops);
+ if (!new_fops)
goto out;
- }
- if (filp->f_op->open && (err = filp->f_op->open(inode, filp))) {
- fops_put(filp->f_op);
- filp->f_op = fops_get(old_fops);
- }
- fops_put(old_fops);
+ replace_fops(filp, new_fops);
+ if (filp->f_op->open)
+ err = filp->f_op->open(inode, filp);
out:
mutex_unlock(&drm_global_mutex);
return err;