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[21/30] staging: sync: Dump sync state on fence errors

Message ID 1362098606-26469-22-git-send-email-john.stultz@linaro.org
State Accepted
Commit 7560645406b8341ab74644b505297e3e32fa6f3a
Headers show

Commit Message

John Stultz March 1, 2013, 12:43 a.m. UTC 
From: Erik Gilling <konkers@android.com>

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: Greg KH <gregkh@linuxfoundation.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>
---
 drivers/staging/android/sync.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
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Patch

diff --git a/drivers/staging/android/sync.c b/drivers/staging/android/sync.c
index 92cdfe8..36ffa20 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,