From: Erik Gilling <konkers@android.com>
Date: Fri, 1 Mar 2013 00:43:17 +0000 (-0800)
Subject: staging: sync: Dump sync state on fence errors
X-Git-Tag: v3.10-rc1~192^2~819
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=7560645406b8341ab74644b505297e3e32fa6f3a;p=~emulex%2Finfiniband.git

staging: sync: Dump sync state on fence errors

When we get a bad status, dump sync state

Cc: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Cc: Erik Gilling <konkers@android.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Rob Clark <robclark@gmail.com>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: dri-devel@lists.freedesktop.org
Cc: Android Kernel Team <kernel-team@android.com>
Signed-off-by: Erik Gilling <konkers@android.com>
[jstultz: Added commit message]
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/staging/android/sync.c b/drivers/staging/android/sync.c
index 92cdfe8031d..36ffa202487 100644
--- a/drivers/staging/android/sync.c
+++ b/drivers/staging/android/sync.c
@@ -572,8 +572,11 @@ int sync_fence_wait(struct sync_fence *fence, long timeout)
 	if (err < 0)
 		return err;
 
-	if (fence->status < 0)
+	if (fence->status < 0) {
+		pr_info("fence error %d on [%p]\n", fence->status, fence);
+		sync_dump();
 		return fence->status;
+	}
 
 	if (fence->status == 0) {
 		pr_info("fence timeout on [%p] after %dms\n", fence,