drm/msm/gpu: Set number of clocks to 0 if the list allocation fails

If we fail to allocate gpu->grp_clks reset the number of available
clocks to zero to avoid referencing the missing array later.

Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/gpu/drm/msm/msm_gpu.c b/drivers/gpu/drm/msm/msm_gpu.c
index 8078e4d52fe0..1c09acfb4028 100644
--- a/drivers/gpu/drm/msm/msm_gpu.c
+++ b/drivers/gpu/drm/msm/msm_gpu.c
@@ -682,8 +682,10 @@ static int get_clocks(struct platform_device *pdev, struct msm_gpu *gpu)
 
         gpu->grp_clks = devm_kcalloc(dev, sizeof(struct clk *), gpu->nr_clocks,
                 GFP_KERNEL);
-        if (!gpu->grp_clks)
+        if (!gpu->grp_clks) {
+                gpu->nr_clocks = 0;
                 return -ENOMEM;
+        }
 
         of_property_for_each_string(dev->of_node, "clock-names", prop, name) {
                 gpu->grp_clks[i] = get_clock(dev, name);