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-rw-r--r--linux-core/drm_auth.c47
-rw-r--r--linux-core/drm_compat.h4
2 files changed, 26 insertions, 25 deletions
diff --git a/linux-core/drm_auth.c b/linux-core/drm_auth.c
index 9c8db644..6948d858 100644
--- a/linux-core/drm_auth.c
+++ b/linux-core/drm_auth.c
@@ -42,20 +42,20 @@
* \param magic magic number.
*
* Searches in drm_device::magiclist within all files with the same hash key
- * the one with matching magic number, while holding the drm_device::struct_sem
+ * the one with matching magic number, while holding the drm_device::struct_mutex
* lock.
*/
static drm_file_t *drm_find_file(drm_device_t * dev, drm_magic_t magic)
{
drm_file_t *retval = NULL;
drm_magic_entry_t *pt;
- drm_hash_item_t *hash;
+ drm_hash_item_t *hash;
- mutex_lock(&dev->struct_mutex);
- if (!drm_ht_find_item(&dev->magiclist, (unsigned long) magic, &hash)) {
- pt = drm_hash_entry(hash, drm_magic_entry_t, hash_item);
- retval = pt->priv;
- }
+ mutex_lock(&dev->struct_mutex);
+ if (!drm_ht_find_item(&dev->magiclist, (unsigned long) magic, &hash)) {
+ pt = drm_hash_entry(hash, drm_magic_entry_t, hash_item);
+ retval = pt->priv;
+ }
mutex_unlock(&dev->struct_mutex);
return retval;
}
@@ -69,7 +69,7 @@ static drm_file_t *drm_find_file(drm_device_t * dev, drm_magic_t magic)
*
* Creates a drm_magic_entry structure and appends to the linked list
* associated the magic number hash key in drm_device::magiclist, while holding
- * the drm_device::struct_sem lock.
+ * the drm_device::struct_mutex lock.
*/
static int drm_add_magic(drm_device_t *dev, drm_file_t *priv,
drm_magic_t magic)
@@ -83,10 +83,10 @@ static int drm_add_magic(drm_device_t *dev, drm_file_t *priv,
return -ENOMEM;
memset(entry, 0, sizeof(*entry));
entry->priv = priv;
- entry->hash_item.key = (unsigned long) magic;
- mutex_lock(&dev->struct_mutex);
- drm_ht_insert_item(&dev->magiclist, &entry->hash_item);
- list_add_tail(&entry->head, &dev->magicfree);
+ entry->hash_item.key = (unsigned long) magic;
+ mutex_lock(&dev->struct_mutex);
+ drm_ht_insert_item(&dev->magiclist, &entry->hash_item);
+ list_add_tail(&entry->head, &dev->magicfree);
mutex_unlock(&dev->struct_mutex);
return 0;
@@ -99,24 +99,24 @@ static int drm_add_magic(drm_device_t *dev, drm_file_t *priv,
* \param magic magic number.
*
* Searches and unlinks the entry in drm_device::magiclist with the magic
- * number hash key, while holding the drm_device::struct_sem lock.
+ * number hash key, while holding the drm_device::struct_mutex lock.
*/
static int drm_remove_magic(drm_device_t * dev, drm_magic_t magic)
{
drm_magic_entry_t *pt;
- drm_hash_item_t *hash;
+ drm_hash_item_t *hash;
DRM_DEBUG("%d\n", magic);
mutex_lock(&dev->struct_mutex);
- if (drm_ht_find_item(&dev->magiclist, (unsigned long) magic, &hash)) {
- mutex_unlock(&dev->struct_mutex);
- return -EINVAL;
- }
- pt = drm_hash_entry(hash, drm_magic_entry_t, hash_item);
- drm_ht_remove_item(&dev->magiclist, hash);
- list_del(&pt->head);
- mutex_unlock(&dev->struct_mutex);
+ if (drm_ht_find_item(&dev->magiclist, (unsigned long) magic, &hash)) {
+ mutex_unlock(&dev->struct_mutex);
+ return -EINVAL;
+ }
+ pt = drm_hash_entry(hash, drm_magic_entry_t, hash_item);
+ drm_ht_remove_item(&dev->magiclist, hash);
+ list_del(&pt->head);
+ mutex_unlock(&dev->struct_mutex);
drm_free(pt, sizeof(*pt), DRM_MEM_MAGIC);
@@ -140,9 +140,6 @@ int drm_getmagic(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg)
{
static drm_magic_t sequence = 0;
-#ifndef DEFINE_SPINLOCK
-#define DEFINE_SPINLOCK(x) spinlock_t x = SPIN_LOCK_UNLOCKED
-#endif
static DEFINE_SPINLOCK(lock);
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->head->dev;
diff --git a/linux-core/drm_compat.h b/linux-core/drm_compat.h
index 4f3a6688..407853d7 100644
--- a/linux-core/drm_compat.h
+++ b/linux-core/drm_compat.h
@@ -205,6 +205,10 @@ static inline int remap_pfn_range(struct vm_area_struct *vma, unsigned long from
#endif
+#ifndef DEFINE_SPINLOCK
+#define DEFINE_SPINLOCK(x) spinlock_t x = SPIN_LOCK_UNLOCKED
+#endif
+
/* old architectures */
#ifdef __AMD64__
#define __x86_64__