diff options
Diffstat (limited to 'linux-core')
| -rw-r--r-- | linux-core/drm_auth.c | 47 | ||||
| -rw-r--r-- | linux-core/drm_compat.h | 4 |
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__ |