This is a note to let you know that I've just added the patch titled
pinctrl: microchip-sgpio: check return value of devm_kasprintf()
to the 6.4-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-microchip-sgpio-check-return-value-of-devm_k.patch
and it can be found in the queue-6.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 7e98894c7d696e22619f36291556062a3a7c9b0c
Author: Claudiu Beznea <claudiu.beznea@xxxxxxxxxxxxx>
Date: Thu Jun 15 13:53:32 2023 +0300
pinctrl: microchip-sgpio: check return value of devm_kasprintf()
[ Upstream commit 310cd4c206cd04696ccbfd1927b5ab6973e8cc8e ]
devm_kasprintf() returns a pointer to dynamically allocated memory.
Pointer could be NULL in case allocation fails. Check pointer validity.
Identified with coccinelle (kmerr.cocci script).
Fixes: 7e5ea974e61c ("pinctrl: pinctrl-microchip-sgpio: Add pinctrl driver for Microsemi Serial GPIO")
Signed-off-by: Claudiu Beznea <claudiu.beznea@xxxxxxxxxxxxx>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20230615105333.585304-3-claudiu.beznea@xxxxxxxxxxxxx
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/pinctrl/pinctrl-microchip-sgpio.c b/drivers/pinctrl/pinctrl-microchip-sgpio.c
index 4794602316e7d..666d8b7cdbad3 100644
--- a/drivers/pinctrl/pinctrl-microchip-sgpio.c
+++ b/drivers/pinctrl/pinctrl-microchip-sgpio.c
@@ -818,6 +818,9 @@ static int microchip_sgpio_register_bank(struct device *dev,
pctl_desc->name = devm_kasprintf(dev, GFP_KERNEL, "%s-%sput",
dev_name(dev),
bank->is_input ? "in" : "out");
+ if (!pctl_desc->name)
+ return -ENOMEM;
+
pctl_desc->pctlops = &sgpio_pctl_ops;
pctl_desc->pmxops = &sgpio_pmx_ops;
pctl_desc->confops = &sgpio_confops;
