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| author | Aditya Pakki <pakki001@umn.edu> | 2019-03-12 18:19:10 +0300 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2019-04-08 12:20:28 +0300 |
| commit | 1adc90c7395742827d754a5f02f446818a77c379 (patch) | |
| tree | 2ac966b861fa728af9844d7ba9537ce60e24482b /drivers/pinctrl/pinctrl-axp209.c | |
| parent | 182e80eeaff5e0e036cc240f17ece49501dd6d17 (diff) | |
| download | linux-1adc90c7395742827d754a5f02f446818a77c379.tar.xz | |
pinctrl: axp209: Fix NULL pointer dereference after allocation
axp20x_build_funcs_groups allocates groups via devm_kcalloc and tries to
dereference without checking for NULL. This patch avoids such a
scenario.
Signed-off-by: Aditya Pakki <pakki001@umn.edu>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl/pinctrl-axp209.c')
| -rw-r--r-- | drivers/pinctrl/pinctrl-axp209.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/pinctrl/pinctrl-axp209.c b/drivers/pinctrl/pinctrl-axp209.c index afd0b533c40a..4fcf7262bed9 100644 --- a/drivers/pinctrl/pinctrl-axp209.c +++ b/drivers/pinctrl/pinctrl-axp209.c @@ -366,6 +366,8 @@ static int axp20x_build_funcs_groups(struct platform_device *pdev) pctl->funcs[i].groups = devm_kcalloc(&pdev->dev, npins, sizeof(char *), GFP_KERNEL); + if (!pctl->funcs[i].groups) + return -ENOMEM; for (pin = 0; pin < npins; pin++) pctl->funcs[i].groups[pin] = pctl->desc->pins[pin].name; } |