iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm/imx: imx-ldb: Check for null pointer after calling kmemdup

Browse Source 
As the possible failure of the allocation, kmemdup() may return NULL
pointer.
Therefore, it should be better to check the return value of kmemdup()
and return error if fails.

Fixes: dc80d7038883 ("drm/imx-ldb: Add support to drm-bridge")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Link: https://lore.kernel.org/r/20220105074729.2363657-1-jiasheng@iscas.ac.cn
This commit is contained in:
Jiasheng Jiang 2022-01-05 15:47:29 +08:00 committed by Philipp Zabel
parent 3123109284
commit 8027a9ad9b
1 changed files with 2 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/imx/imx-ldb.c
View File

@ -572,6 +572,8 @@ static int imx_ldb_panel_ddc(struct device *dev,
edidp = of_get_property(child, "edid", &edid_len);
if (edidp) {
channel->edid = kmemdup(edidp, edid_len, GFP_KERNEL);
if (!channel->edid)
return -ENOMEM;
} else if (!channel->panel) {
/* fallback to display-timings node */
ret = of_get_drm_display_mode(child,