This is a note to let you know that I've just added the patch titled
pinctrl: sunplus: Add check for kcalloc
to the 5.18-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:
pinctrl-sunplus-add-check-for-kcalloc.patch
and it can be found in the queue-5.18 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 813593b032046338f6c1d1352c70a476ce55d793
Author: William Dean <williamsukatube@xxxxxxxxx>
Date: Sun Jul 10 23:48:22 2022 +0800
pinctrl: sunplus: Add check for kcalloc
[ Upstream commit acf50233fc979b566e3b87d329191dcd01e2a72c ]
As the potential failure of the kcalloc(),
it should be better to check it in order to
avoid the dereference of the NULL pointer.
Fixes: aa74c44be19c8 ("pinctrl: Add driver for Sunplus SP7021")
Reported-by: Hacash Robot <hacashRobot@xxxxxxxxxxx>
Signed-off-by: William Dean <williamsukatube@xxxxxxxxx>
Link: https://lore.kernel.org/r/20220710154822.2610801-1-williamsukatube@xxxxxxx
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/pinctrl/sunplus/sppctl.c b/drivers/pinctrl/sunplus/sppctl.c
index 3ba47040ac42..2b3335ab56c6 100644
--- a/drivers/pinctrl/sunplus/sppctl.c
+++ b/drivers/pinctrl/sunplus/sppctl.c
@@ -871,6 +871,9 @@ static int sppctl_dt_node_to_map(struct pinctrl_dev *pctldev, struct device_node
}
*map = kcalloc(*num_maps + nmG, sizeof(**map), GFP_KERNEL);
+ if (*map == NULL)
+ return -ENOMEM;
+
for (i = 0; i < (*num_maps); i++) {
dt_pin = be32_to_cpu(list[i]);
pin_num = FIELD_GET(GENMASK(31, 24), dt_pin);
