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 11aac83..32d04a9 100644 (file)
--- 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;