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| author | Sachin Kamat <sachin.kamat@linaro.org> | 2014-05-30 15:50:52 +0530 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2014-06-19 09:34:56 +0200 |
| commit | bd07894e217b174361711320be50c8308456096d (patch) | |
| tree | c641beb3279edfca46b9d9619ece020449d47914 /drivers/pinctrl/sunxi | |
| parent | 7171511eaec5bf23fb06078f59784a3a0626b38f (diff) | |
| download | linux-bd07894e217b174361711320be50c8308456096d.tar.gz | |
pinctrl: sunxi: Fix potential null pointer dereference
kzalloc can fail. Add a null check to avoid null pointer dereference error while accessing the pointer later. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl/sunxi')
| -rw-r--r-- | drivers/pinctrl/sunxi/pinctrl-sunxi.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/pinctrl/sunxi/pinctrl-sunxi.c b/drivers/pinctrl/sunxi/pinctrl-sunxi.c index f1ca75e6d7b1..5f38c7f67834 100644 --- a/drivers/pinctrl/sunxi/pinctrl-sunxi.c +++ b/drivers/pinctrl/sunxi/pinctrl-sunxi.c @@ -211,6 +211,10 @@ static int sunxi_pctrl_dt_node_to_map(struct pinctrl_dev *pctldev, configlen++; pinconfig = kzalloc(configlen * sizeof(*pinconfig), GFP_KERNEL); + if (!pinconfig) { + kfree(*map); + return -ENOMEM; + } if (!of_property_read_u32(node, "allwinner,drive", &val)) { u16 strength = (val + 1) * 10; |