From 41470c379b4f8d9a1513d930338fadfbccc287b6 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Thu, 7 Sep 2017 10:29:26 +0300
Subject: [PATCH] pinctrl: sprd: check for allocation failure
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: 41d32cfce1ae ("pinctrl: sprd: Add Spreadtrum pin control driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
drivers/pinctrl/sprd/pinctrl-sprd.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/drivers/pinctrl/sprd/pinctrl-sprd.c b/drivers/pinctrl/sprd/pinctrl-sprd.c
index c178b4a6d7f56..e52a01e1f662e 100644
--- a/drivers/pinctrl/sprd/pinctrl-sprd.c
+++ b/drivers/pinctrl/sprd/pinctrl-sprd.c
@@ -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");
--
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