mirrors
/
linux-stable
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
1
0
Fork 0
Code Issues Releases Wiki Activity

pinctrl: at91-pio4: check return value of devm_kasprintf() 

[ Upstream commit f6fd5d4ff8 ]

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: 776180848b ("pinctrl: introduce driver for Atmel PIO4 controller")
Depends-on: 1c4e5c470a ("pinctrl: at91: use devm_kasprintf() to avoid potential leaks")
Depends-on: 5a8f9cf269 ("pinctrl: at91-pio4: use proper format specifier for unsigned int")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20230615105333.585304-4-claudiu.beznea@microchip.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Claudiu Beznea 2023-06-15 13:53:33 +03:00 committed by Greg Kroah-Hartman
parent 4c7dcd17bc
commit 5bfd577cc7
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/pinctrl/pinctrl-at91-pio4.c
View File

@ -1151,6 +1151,8 @@ static int atmel_pinctrl_probe(struct platform_device *pdev)
/* Pin naming convention: P(bank_name)(bank_pin_number). */
pin_desc[i].name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "P%c%d",
bank + 'A', line);
if (!pin_desc[i].name)
return -ENOMEM;
group->name = group_names[i] = pin_desc[i].name;
group->pin = pin_desc[i].number;