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| author | Al Viro <viro@zeniv.linux.org.uk> | 2013-09-22 18:17:15 (GMT) |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2013-10-25 03:34:53 (GMT) |
| commit | e84f9e57b90ca89664d733a7cef19aa7ccd832f3 (patch) | |
| tree | 2766cbae82e38a4356b161a7f48abfd9e4db56ce /drivers/gpu | |
| parent | 7b00ed6fe6321547b9d51f5bfb30e7b5932e6889 (diff) | |
| download | linux-e84f9e57b90ca89664d733a7cef19aa7ccd832f3.tar.xz | |
consolidate the reassignments of ->f_op in ->open() instances
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/drm_fops.c | 17 |
1 files changed, 6 insertions, 11 deletions
diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c index 3f84277..22d14ec 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; |