From: Claudiu Beznea Date: Wed, 31 May 2023 07:28:54 +0000 (+0300) Subject: drm/stm: ltdc: check memory returned by devm_kzalloc() X-Git-Tag: v6.10.13~456 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=06783d9e5791b043646ffda5a31c6ac2b966abaa;p=thirdparty%2Fkernel%2Fstable.git drm/stm: ltdc: check memory returned by devm_kzalloc() [ Upstream commit fd39730c58890cd7f0a594231e19bb357f28877c ] devm_kzalloc() can fail and return NULL pointer. Check its return status. Identified with Coccinelle (kmerr.cocci script). Fixes: 484e72d3146b ("drm/stm: ltdc: add support of ycbcr pixel formats") Signed-off-by: Claudiu Beznea Acked-by: Raphael Gallais-Pou Link: https://patchwork.freedesktop.org/patch/msgid/20230531072854.142629-1-claudiu.beznea@microchip.com Signed-off-by: Raphael Gallais-Pou Signed-off-by: Sasha Levin --- diff --git a/drivers/gpu/drm/stm/ltdc.c b/drivers/gpu/drm/stm/ltdc.c index 5576fdae49623..5aec1e58c968c 100644 --- a/drivers/gpu/drm/stm/ltdc.c +++ b/drivers/gpu/drm/stm/ltdc.c @@ -1580,6 +1580,8 @@ static struct drm_plane *ltdc_plane_create(struct drm_device *ddev, ARRAY_SIZE(ltdc_drm_fmt_ycbcr_sp) + ARRAY_SIZE(ltdc_drm_fmt_ycbcr_fp)) * sizeof(*formats), GFP_KERNEL); + if (!formats) + return NULL; for (i = 0; i < ldev->caps.pix_fmt_nb; i++) { drm_fmt = ldev->caps.pix_fmt_drm[i];