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pinctrl: sprd: check for allocation failure

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devm_pinctrl_get() could fail with ERR_PTR(-ENOMEM) so I have added a
check for that.  I also reversed the other IS_ERR() test because it was
a little confusing to test one way and then the opposite a couple lines
later.

Fixes: 41d32cfce1 ("pinctrl: sprd: Add Spreadtrum pin control driver")
Signed-off-by: Dan Carpenter <[email protected]>
Signed-off-by: Linus Walleij <[email protected]>
This commit is contained in:
Dan Carpenter 2017-09-07 10:29:26 +03:00 • committed by Linus Walleij
commit 41470c379b
1 changed files with 7 additions and 3 deletions
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10
drivers/pinctrl/sprd/pinctrl-sprd.c
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@ -1100,12 +1100,16 @@ int sprd_pinctrl_remove(struct platform_device *pdev)
void sprd_pinctrl_shutdown(struct platform_device *pdev)
{
struct pinctrl *pinctl = devm_pinctrl_get(&pdev->dev);
struct pinctrl *pinctl;
struct pinctrl_state *state;
pinctl = devm_pinctrl_get(&pdev->dev);
if (IS_ERR(pinctl))
return;
state = pinctrl_lookup_state(pinctl, "shutdown");
if (!IS_ERR(state))
pinctrl_select_state(pinctl, state);
if (IS_ERR(state))
return;
pinctrl_select_state(pinctl, state);
}
MODULE_DESCRIPTION("SPREADTRUM Pin Controller Driver");