drm/msm/adreno: Use kvmemdup to simplify the code

Use kvmemdup instead of kvmalloc() + memcpy() to simplify the code.

No functional change intended.

Signed-off-by: Li Zetao <lizetao1@huawei.com>
Reviewed-by: Akhil P Oommen <quic_akhilpo@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/609596/
Signed-off-by: Rob Clark <robdclark@chromium.org>

diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c b/drivers/gpu/drm/msm/adreno/adreno_gpu.c
index ecc3fc5..120b235 100644 (file)
--- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c
@@ -688,11 +688,9 @@ int adreno_gpu_state_get(struct msm_gpu *gpu, struct msm_gpu_state *state)
                                size = j + 1;
 
                if (size) {
-                       state->ring[i].data = kvmalloc(size << 2, GFP_KERNEL);
-                       if (state->ring[i].data) {
-                               memcpy(state->ring[i].data, gpu->rb[i]->start, size << 2);
+                       state->ring[i].data = kvmemdup(gpu->rb[i]->start, size << 2, GFP_KERNEL);
+                       if (state->ring[i].data)
                                state->ring[i].data_size = size << 2;
-                       }
                }
        }