Commit fd39730c authored by Claudiu Beznea's avatar Claudiu Beznea Committed by Raphael Gallais-Pou
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drm/stm: ltdc: check memory returned by devm_kzalloc() 



devm_kzalloc() can fail and return NULL pointer. Check its return status.
Identified with Coccinelle (kmerr.cocci script).

Fixes: 484e72d3 ("drm/stm: ltdc: add support of ycbcr pixel formats")
Signed-off-by: default avatarClaudiu Beznea <claudiu.beznea@microchip.com>
Acked-by: default avatarRaphael Gallais-Pou <raphael.gallais-pou@foss.st.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230531072854.142629-1-claudiu.beznea@microchip.com


Signed-off-by: default avatarRaphael Gallais-Pou <raphael.gallais-pou@foss.st.com>
parent 3ac93840

drivers/gpu/drm/stm/ltdc.c

+2 −0
Original line number Diff line number Diff line
@@ -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];