Bug #112196: auth.c uses semaphores while holding spinlocks Make spinlocked

    region smaller to avoid semaphore.

diff --git a/linux/auth.c b/linux/auth.c
index 9f81c53..4556bd9 100644 (file)
--- a/linux/auth.c
+++ b/linux/auth.c
@@ -126,12 +126,12 @@ int drm_getmagic(struct inode *inode, struct file *filp, unsigned int cmd,
        if (priv->magic) {
                auth.magic = priv->magic;
        } else {
-               spin_lock(&lock);
                do {
+                       spin_lock(&lock);
                        if (!sequence) ++sequence; /* reserve 0 */
                        auth.magic = sequence++;
+                       spin_unlock(&lock);
                } while (drm_find_file(dev, auth.magic));
-               spin_unlock(&lock);
                priv->magic = auth.magic;
                drm_add_magic(dev, priv, auth.magic);
        }