From: Sharat Masetty <smasetty@codeaurora.org>
Date: Fri, 12 Oct 2018 08:56:55 +0000 (+0530)
Subject: drm/msm: Check if target supports crash dump capture
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=4f3a31a8e8bff5fc363ec9f4755e58a15f7f36c7;p=linux.git

drm/msm: Check if target supports crash dump capture

This patch simply checks first to see if the target can support crash dump
capture before proceeding.

Signed-off-by: Sharat Masetty <smasetty@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
---

diff --git a/drivers/gpu/drm/msm/msm_gpu.c b/drivers/gpu/drm/msm/msm_gpu.c
index 11aac83370664..32d04a9b48cff 100644
--- a/drivers/gpu/drm/msm/msm_gpu.c
+++ b/drivers/gpu/drm/msm/msm_gpu.c
@@ -345,6 +345,10 @@ static void msm_gpu_crashstate_capture(struct msm_gpu *gpu,
 {
 	struct msm_gpu_state *state;
 
+	/* Check if the target supports capturing crash state */
+	if (!gpu->funcs->gpu_state_get)
+		return;
+
 	/* Only save one crash state at a time */
 	if (gpu->crashstate)
 		return;