[AGP] Clean up atomic usage of agp_bridge.agp_in_use

91dd71e5 · Dave Jones · fcbdf76e · 91dd71e5
Commit 91dd71e5 authored Dec 30, 2002 by Dave Jones
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Showing with 3 additions and 5 deletions

drivers/char/agp/backend.c drivers/char/agp/backend.c +3 -5

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--- a/drivers/char/agp/backend.c
+++ b/drivers/char/agp/backend.c
@@ -49,12 +49,10 @@ int agp_backend_acquire(void)
 	if (agp_bridge.type == NOT_SUPPORTED)
 		return -EINVAL;

-	atomic_inc(&agp_bridge.agp_in_use);
-
-	if (atomic_read(&agp_bridge.agp_in_use) != 1) {
-		atomic_dec(&agp_bridge.agp_in_use);
+	if (atomic_read(&agp_bridge.agp_in_use) != 0)
 		return -EBUSY;
-	}
+
+	atomic_inc(&agp_bridge.agp_in_use);
 	return 0;
 }