This is a note to let you know that I've just added the patch titled
drm/stm: ltdc: check memory returned by devm_kzalloc()
to the 6.11-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-stm-ltdc-check-memory-returned-by-devm_kzalloc.patch
and it can be found in the queue-6.11 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 742a0d40a9243627e518c38c5f9fb6d607d3a4dc
Author: Claudiu Beznea <claudiu.beznea@xxxxxxxxx>
Date: Wed May 31 10:28:54 2023 +0300
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 <claudiu.beznea@xxxxxxxxxxxxx>
Acked-by: Raphael Gallais-Pou <raphael.gallais-pou@xxxxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20230531072854.142629-1-claudiu.beznea@xxxxxxxxxxxxx
Signed-off-by: Raphael Gallais-Pou <raphael.gallais-pou@xxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
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];
