Module Name:    src
Committed By:   riastradh
Date:           Sun Dec 19 12:26:39 UTC 2021

Modified Files:
        src/sys/external/bsd/drm2/linux: linux_dma_resv.c

Log Message:
drm: Factor dma_fence_put out of multiple dma_resv_do_poll branches.


To generate a diff of this commit:
cvs rdiff -u -r1.15 -r1.16 src/sys/external/bsd/drm2/linux/linux_dma_resv.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

Modified files:

Index: src/sys/external/bsd/drm2/linux/linux_dma_resv.c
diff -u src/sys/external/bsd/drm2/linux/linux_dma_resv.c:1.15 src/sys/external/bsd/drm2/linux/linux_dma_resv.c:1.16
--- src/sys/external/bsd/drm2/linux/linux_dma_resv.c:1.15	Sun Dec 19 12:26:30 2021
+++ src/sys/external/bsd/drm2/linux/linux_dma_resv.c	Sun Dec 19 12:26:39 2021
@@ -1,4 +1,4 @@
-/*	$NetBSD: linux_dma_resv.c,v 1.15 2021/12/19 12:26:30 riastradh Exp $	*/
+/*	$NetBSD: linux_dma_resv.c,v 1.16 2021/12/19 12:26:39 riastradh Exp $	*/
 
 /*-
  * Copyright (c) 2018 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: linux_dma_resv.c,v 1.15 2021/12/19 12:26:30 riastradh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: linux_dma_resv.c,v 1.16 2021/12/19 12:26:39 riastradh Exp $");
 
 #include <sys/param.h>
 #include <sys/poll.h>
@@ -1350,11 +1350,8 @@ top:	KASSERT(fence == NULL);
 		 * Test whether it is signalled.  If not, stop and
 		 * request a callback.
 		 */
-		if (dma_fence_is_signaled(fence)) {
-			dma_fence_put(fence);
-			fence = NULL;
+		if (dma_fence_is_signaled(fence))
 			break;
-		}
 
 		/* Put ourselves on the selq if we haven't already.  */
 		if (!recorded) {
@@ -1369,8 +1366,6 @@ top:	KASSERT(fence == NULL);
 		 * assume the event is not ready.
 		 */
 		if (!claimed || callback) {
-			dma_fence_put(fence);
-			fence = NULL;
 			revents = 0;
 			break;
 		}
@@ -1383,16 +1378,15 @@ top:	KASSERT(fence == NULL);
 		 */
 		if (!dma_fence_add_callback(fence, &rpoll->rp_fcb,
 			dma_resv_poll_cb)) {
-			dma_fence_put(fence);
-			fence = NULL;
 			revents = 0;
 			callback = true;
 			break;
 		}
+	} while (0);
+	if (fence != NULL) {
 		dma_fence_put(fence);
 		fence = NULL;
-	} while (0);
-	KASSERT(fence == NULL);
+	}
 
 	/* All done reading the fences.  */
 	rcu_read_unlock();

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