From: Rob Clark <robclark@freedesktop.org>
Date: Sun, 5 Jan 2014 17:19:12 +0000 (-0500)
Subject: freedreno/kgsl: fix crash introduced w/ bo-cache
X-Git-Tag: 2.4.51~2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b6caecfa904de0b4e35b93ed1212ae0089078b6d;p=platform%2Fupstream%2Flibdrm.git

freedreno/kgsl: fix crash introduced w/ bo-cache

Signed-off-by: Rob Clark <robclark@freedesktop.org>
---

diff --git a/freedreno/kgsl/kgsl_bo.c b/freedreno/kgsl/kgsl_bo.c
index 585851c..76d1f27 100644
--- a/freedreno/kgsl/kgsl_bo.c
+++ b/freedreno/kgsl/kgsl_bo.c
@@ -85,6 +85,13 @@ static int kgsl_bo_cpu_prep(struct fd_bo *bo, struct fd_pipe *pipe, uint32_t op)
 		uint32_t current;
 		int ret;
 
+		/* special case for is_idle().. we can't really handle that
+		 * properly in kgsl (perhaps we need a way to just disable
+		 * the bo-cache for kgsl?)
+		 */
+		if (!pipe)
+			return -EBUSY;
+
 		ret = kgsl_pipe_timestamp(to_kgsl_pipe(pipe), &current);
 		if (ret)
 			return ret;