diff options
| author | Kunwu Chan <chentao@kylinos.cn> | 2024-01-15 17:43:30 +0800 |
|---|---|---|
| committer | Madhavan Srinivasan <maddy@linux.ibm.com> | 2025-11-11 14:39:25 +0530 |
| commit | 2617bd81ae54128e63e764c48935e572e3dee501 (patch) | |
| tree | 786f6fc9c4dda8593cc9148337bb0e2301dcd04f | |
| parent | f90d28443b1f4dbbbdcfea1be5295f6903acc94c (diff) | |
powerpc/83xx: Add a null pointer check to mcu_gpiochip_add
kasprintf() returns a pointer to dynamically allocated memory
which can be NULL upon failure. Ensure the allocation was successful
by checking the pointer validity.
Signed-off-by: Kunwu Chan <chentao@kylinos.cn>
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Link: https://patch.msgid.link/20240115094330.33014-1-chentao@kylinos.cn
| -rw-r--r-- | arch/powerpc/platforms/83xx/mcu_mpc8349emitx.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/83xx/mcu_mpc8349emitx.c b/arch/powerpc/platforms/83xx/mcu_mpc8349emitx.c index cb7b9498f291..80d944f29288 100644 --- a/arch/powerpc/platforms/83xx/mcu_mpc8349emitx.c +++ b/arch/powerpc/platforms/83xx/mcu_mpc8349emitx.c @@ -123,6 +123,8 @@ static int mcu_gpiochip_add(struct mcu *mcu) gc->owner = THIS_MODULE; gc->label = kasprintf(GFP_KERNEL, "%pfw", dev_fwnode(dev)); + if (!gc->label) + return -ENOMEM; gc->can_sleep = 1; gc->ngpio = MCU_NUM_GPIO; gc->base = -1; |