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| author | YueHaibing <yuehaibing@huawei.com> | 2018-08-01 07:10:49 +0200 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2018-08-03 19:28:15 +0200 |
| commit | b5031b7db77dc47f474f0efc2b2552c32b7bb59d (patch) | |
| tree | 05945a16717151f2cb1d3489f28cf52c0a1bb791 /drivers/pinctrl/berlin | |
| parent | gpio: tegra: Move driver registration to subsys_init level (diff) | |
| download | linux-b5031b7db77dc47f474f0efc2b2552c32b7bb59d.tar.xz linux-b5031b7db77dc47f474f0efc2b2552c32b7bb59d.zip | |
pinctrl: berlin: fix 'pctrl->functions' allocation in berlin_pinctrl_build_state
fixes following Smatch static check warning:
drivers/pinctrl/berlin/berlin.c:237 berlin_pinctrl_build_state()
warn: passing devm_ allocated variable to kfree. 'pctrl->functions'
As we will be calling krealloc() on pointer 'pctrl->functions', which means
kfree() will be called in there, devm_kzalloc() shouldn't be used with
the allocation in the first place. Fix the warning by calling kcalloc()
and managing the free procedure in error path on our own.
Fixes: 3de68d331c24 ("pinctrl: berlin: add the core pinctrl driver for Marvell Berlin SoCs")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl/berlin')
| -rw-r--r-- | drivers/pinctrl/berlin/berlin.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/drivers/pinctrl/berlin/berlin.c b/drivers/pinctrl/berlin/berlin.c index d6d183e9db17..b5903fffb3d0 100644 --- a/drivers/pinctrl/berlin/berlin.c +++ b/drivers/pinctrl/berlin/berlin.c @@ -216,10 +216,8 @@ static int berlin_pinctrl_build_state(struct platform_device *pdev) } /* we will reallocate later */ - pctrl->functions = devm_kcalloc(&pdev->dev, - max_functions, - sizeof(*pctrl->functions), - GFP_KERNEL); + pctrl->functions = kcalloc(max_functions, + sizeof(*pctrl->functions), GFP_KERNEL); if (!pctrl->functions) return -ENOMEM; @@ -257,8 +255,10 @@ static int berlin_pinctrl_build_state(struct platform_device *pdev) function++; } - if (!found) + if (!found) { + kfree(pctrl->functions); return -EINVAL; + } if (!function->groups) { function->groups = @@ -267,8 +267,10 @@ static int berlin_pinctrl_build_state(struct platform_device *pdev) sizeof(char *), GFP_KERNEL); - if (!function->groups) + if (!function->groups) { + kfree(pctrl->functions); return -ENOMEM; + } } groups = function->groups; |