From: Xiaoke Wang <xkernel.w...@foxmail.com> [ Upstream commit f75e582b0c3ee8f0bddc2248cc8b9175f29c5937 ]
kzalloc() is a memory allocation function which can return NULL when some internal memory errors happen. So it is better to check it to prevent potential wrong memory access. Signed-off-by: Xiaoke Wang <xkernel.w...@foxmail.com> Reviewed-by: Abhinav Kumar <quic_abhin...@quicinc.com> Link: https://lore.kernel.org/r/tencent_b3e19486ff39415098b572b7397c2936c...@qq.com Signed-off-by: Rob Clark <robdcl...@chromium.org> Signed-off-by: Sasha Levin <sas...@kernel.org> --- drivers/gpu/drm/msm/disp/msm_disp_snapshot_util.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/msm/disp/msm_disp_snapshot_util.c b/drivers/gpu/drm/msm/disp/msm_disp_snapshot_util.c index 5d2ff6791058..acfe1b31e079 100644 --- a/drivers/gpu/drm/msm/disp/msm_disp_snapshot_util.c +++ b/drivers/gpu/drm/msm/disp/msm_disp_snapshot_util.c @@ -176,6 +176,8 @@ void msm_disp_snapshot_add_block(struct msm_disp_state *disp_state, u32 len, va_list va; new_blk = kzalloc(sizeof(struct msm_disp_state_block), GFP_KERNEL); + if (!new_blk) + return; va_start(va, fmt); -- 2.35.1
