diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-01-25 15:24:30 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-01-25 15:24:30 -0800 |
| commit | 74a7f6a0a61f1f5addd0afa789785f4cefcfcafc (patch) | |
| tree | 0172864707218626c857125d5a212e4e1933a058 /drivers/gpu/drm/drm_auth.c | |
| parent | 486bc794abfdc10fcb417fbb0b781b46e1e70aef (diff) | |
| parent | 9f1feed2e16652a6e599ed4a73b4c501bb3d4568 (diff) | |
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/ttm: fix two regressions since move_notify changes
drm/radeon: avoid deadlock if GPU lockup is detected in ib_pool_get
drm/radeon: silence out possible lock dependency warning
drm: Fix authentication kernel crash
gma500: Fix shmem mapping
drm/radeon/kms: refine TMDS dual link checks
drm/radeon/kms: use drm_detect_hdmi_monitor for picking encoder mode
drm/radeon/kms: rework modeset sequence for DCE41 and DCE5
drm/radeon/kms: move panel mode setup into encoder mode set
drm/radeon/kms: move disp eng pll setup to init path
drm/radeon: finish getting bios earlier
drm/radeon: fix invalid memory access in radeon_atrm_get_bios()
drm/radeon/kms: add some missing semaphore init
drm/radeon/kms: Add an MSI quirk for Dell RS690
gpu, drm, sis: Don't return uninitialized variable from sis_driver_load()
Diffstat (limited to 'drivers/gpu/drm/drm_auth.c')
| -rw-r--r-- | drivers/gpu/drm/drm_auth.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_auth.c b/drivers/gpu/drm/drm_auth.c index 3f46772f0cb..ba23790450e 100644 --- a/drivers/gpu/drm/drm_auth.c +++ b/drivers/gpu/drm/drm_auth.c @@ -101,7 +101,7 @@ static int drm_add_magic(struct drm_master *master, struct drm_file *priv, * Searches and unlinks the entry in drm_device::magiclist with the magic * number hash key, while holding the drm_device::struct_mutex lock. */ -static int drm_remove_magic(struct drm_master *master, drm_magic_t magic) +int drm_remove_magic(struct drm_master *master, drm_magic_t magic) { struct drm_magic_entry *pt; struct drm_hash_item *hash; @@ -136,6 +136,8 @@ static int drm_remove_magic(struct drm_master *master, drm_magic_t magic) * If there is a magic number in drm_file::magic then use it, otherwise * searches an unique non-zero magic number and add it associating it with \p * file_priv. + * This ioctl needs protection by the drm_global_mutex, which protects + * struct drm_file::magic and struct drm_magic_entry::priv. */ int drm_getmagic(struct drm_device *dev, void *data, struct drm_file *file_priv) { @@ -173,6 +175,8 @@ int drm_getmagic(struct drm_device *dev, void *data, struct drm_file *file_priv) * \return zero if authentication successed, or a negative number otherwise. * * Checks if \p file_priv is associated with the magic number passed in \arg. + * This ioctl needs protection by the drm_global_mutex, which protects + * struct drm_file::magic and struct drm_magic_entry::priv. */ int drm_authmagic(struct drm_device *dev, void *data, struct drm_file *file_priv) |