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drm/stm: ltdc: check memory returned by devm_kzalloc()

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[ Upstream commit fd39730c58890cd7f0a594231e19bb357f28877c ]

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

Fixes: 484e72d314 ("drm/stm: ltdc: add support of ycbcr pixel formats")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Acked-by: Raphael 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: Raphael Gallais-Pou <raphael.gallais-pou@foss.st.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Claudiu Beznea
2023-05-31 10:28:54 +03:00
committed by Greg Kroah-Hartman
parent 6c444fb529
commit bb90800578
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/stm/ltdc.c
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@@ -1581,6 +1581,8 @@ 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];