'dma_alloc_coherent()' alloc a 'RKVDEC_VP9_COUNT_SIZE' size area to 'unsigned char *count_tbl', however, the memset() bellow only set 'sizeof(*count_tbl)', which equals to 1, bytes to zero. This can cause unexpected error. Fixes: f25709c4ff15 ("media: rkvdec: Add the VP9 backend") Signed-off-by: Zhang Zekun <zhangzekun11@xxxxxxxxxx> --- drivers/staging/media/rkvdec/rkvdec-vp9.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/media/rkvdec/rkvdec-vp9.c b/drivers/staging/media/rkvdec/rkvdec-vp9.c index 311a12656072..3ad303a3de48 100644 --- a/drivers/staging/media/rkvdec/rkvdec-vp9.c +++ b/drivers/staging/media/rkvdec/rkvdec-vp9.c @@ -1026,7 +1026,7 @@ static int rkvdec_vp9_start(struct rkvdec_ctx *ctx) vp9_ctx->count_tbl.size = RKVDEC_VP9_COUNT_SIZE; vp9_ctx->count_tbl.cpu = count_tbl; - memset(count_tbl, 0, sizeof(*count_tbl)); + memset(count_tbl, 0, RKVDEC_VP9_COUNT_SIZE); rkvdec_init_v4l2_vp9_count_tbl(ctx); return 0; -- 2.17.1