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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-02-02 11:24:44 -0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-02-02 11:24:44 -0800
commitbd1d462e13b278fc57752d0b9b15040e60e561a0 (patch)
treee2fdf1c18a93aab02830bcb8a5db8cdddfbb63a8 /drivers/gpu/drm/drm_auth.c
parentd5c38b137ac8a6e3dbed13bc494d60df5b69dfc4 (diff)
parent62aa2b537c6f5957afd98e29f96897419ed5ebab (diff)
downloadlinux-rt-bd1d462e13b278fc57752d0b9b15040e60e561a0.tar.gz
Merge 3.3-rc2 into the driver-core-next branch.
This was done to resolve a merge and build problem with the drivers/acpi/processor_driver.c file. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu/drm/drm_auth.c')
-rw-r--r--drivers/gpu/drm/drm_auth.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_auth.c b/drivers/gpu/drm/drm_auth.c
index 3f46772f0cb2..ba23790450e9 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)