Good point.
Acked-by: Seung-Woo Kim <sw0312....@samsung.com>
On 2013년 03월 12일 04:25, Alexandru Gheorghiu wrote:
> Replaced calls to kzalloc followed by memcpy with call to kmemdup.
> Patch found using coccinelle.
>
> Signed-off-by: Alexandru Gheorghiu <gheorghiuan...@gmail.com>
> ---
> drivers/gpu/drm/exynos/exynos_drm_vidi.c | 6 ++----
> 1 file changed, 2 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_vidi.c
> b/drivers/gpu/drm/exynos/exynos_drm_vidi.c
> index 13ccbd4..9504b0c 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_vidi.c
> +++ b/drivers/gpu/drm/exynos/exynos_drm_vidi.c
> @@ -117,13 +117,12 @@ static struct edid *vidi_get_edid(struct device *dev,
> }
>
> edid_len = (1 + ctx->raw_edid->extensions) * EDID_LENGTH;
> - edid = kzalloc(edid_len, GFP_KERNEL);
> + edid = kmemdup(ctx->raw_edid, edid_len, GFP_KERNEL);
> if (!edid) {
> DRM_DEBUG_KMS("failed to allocate edid\n");
> return ERR_PTR(-ENOMEM);
> }
>
> - memcpy(edid, ctx->raw_edid, edid_len);
> return edid;
> }
>
> @@ -563,12 +562,11 @@ int vidi_connection_ioctl(struct drm_device *drm_dev,
> void *data,
> return -EINVAL;
> }
> edid_len = (1 + raw_edid->extensions) * EDID_LENGTH;
> - ctx->raw_edid = kzalloc(edid_len, GFP_KERNEL);
> + ctx->raw_edid = kmemdup(raw_edid, edid_len, GFP_KERNEL);
> if (!ctx->raw_edid) {
> DRM_DEBUG_KMS("failed to allocate raw_edid.\n");
> return -ENOMEM;
> }
> - memcpy(ctx->raw_edid, raw_edid, edid_len);
> } else {
> /*
> * with connection = 0, free raw_edid
>
--
Seung-Woo Kim
Samsung Software R&D Center
--
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