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| author | William Dean <williamsukatube@gmail.com> | 2022-07-10 23:48:22 +0800 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2022-07-11 15:04:19 +0200 |
| commit | acf50233fc979b566e3b87d329191dcd01e2a72c (patch) | |
| tree | 22eac9b15e92f93221215acdd4f073845c5ec867 /drivers/pinctrl | |
| parent | c3b821e8e406d5650e587b7ac624ac24e9b780a8 (diff) | |
| download | linux-stable-acf50233fc979b566e3b87d329191dcd01e2a72c.tar.gz linux-stable-acf50233fc979b566e3b87d329191dcd01e2a72c.tar.bz2 linux-stable-acf50233fc979b566e3b87d329191dcd01e2a72c.zip | |
pinctrl: sunplus: Add check for kcalloc
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@santino.com>
Signed-off-by: William Dean <williamsukatube@gmail.com>
Link: https://lore.kernel.org/r/20220710154822.2610801-1-williamsukatube@163.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl')
| -rw-r--r-- | drivers/pinctrl/sunplus/sppctl.c | 3 |
1 files changed, 3 insertions, 0 deletions
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); |