From: Haowen Bai Date: Tue, 24 May 2022 03:42:21 +0000 (+0100) Subject: media: mediatek: vcodec: Use kmemdup rather than kmalloc/memcpy X-Git-Tag: microblaze-v6.1~142^2~381 X-Git-Url: http://git.monstr.eu/?a=commitdiff_plain;h=8b0f690de13625c80367bf56fe3ed5eaa5b33b27;p=linux-2.6-microblaze.git media: mediatek: vcodec: Use kmemdup rather than kmalloc/memcpy kmemdup is introduced to duplicate a region of memory in a neat way. Rather than kmalloc/kzalloc + memcpy, which the programmer needs to write the size twice (sometimes lead to mistakes), kmemdup improves readability, leads to smaller code and also reduce the chances of mistakes. Suggestion to use kmemdup rather than using kmalloc/kzalloc + memcpy. Signed-off-by: Haowen Bai Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/platform/mediatek/vcodec/vdec/vdec_vp9_req_lat_if.c b/drivers/media/platform/mediatek/vcodec/vdec/vdec_vp9_req_lat_if.c index 1e6e8eb94265..f464af190d8c 100644 --- a/drivers/media/platform/mediatek/vcodec/vdec/vdec_vp9_req_lat_if.c +++ b/drivers/media/platform/mediatek/vcodec/vdec/vdec_vp9_req_lat_if.c @@ -526,13 +526,12 @@ static int vdec_vp9_slice_init_default_frame_ctx(struct vdec_vp9_slice_instance if (vdec_vp9_slice_default_frame_ctx) goto out; - frame_ctx = kmalloc(sizeof(*frame_ctx), GFP_KERNEL); + frame_ctx = kmemdup(remote_frame_ctx, sizeof(*frame_ctx), GFP_KERNEL); if (!frame_ctx) { ret = -ENOMEM; goto out; } - memcpy(frame_ctx, remote_frame_ctx, sizeof(*frame_ctx)); vdec_vp9_slice_default_frame_ctx = frame_ctx; out: