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authorWei Yongjun <yongjun_wei@trendmicro.com.cn>2013-10-21 06:55:29 +0400
committerLinus Walleij <linus.walleij@linaro.org>2013-10-23 12:41:22 +0400
commit86467ff2ddca94c0d8d10b92b5916e68c0cad8a9 (patch)
tree7a54fc2c24f30699fb4b691025bc7defd6a52870 /drivers/pinctrl/pinctrl-tb10x.c
parentfe61052ae97a33c229a3ae7ad29e0c9b9ccada02 (diff)
downloadlinux-86467ff2ddca94c0d8d10b92b5916e68c0cad8a9.tar.xz
pinctrl: tb10x: fix the error handling in tb10x_pinctrl_probe()
This patch fix the error handling in tb10x_pinctrl_probe(): - devm_ioremap_resource() return ERR_PTR() and never return NULL - remove the dev_err call to avoid redundant error message - pinctrl_register() returns NULL not ERR_PTR() Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl/pinctrl-tb10x.c')
-rw-r--r--drivers/pinctrl/pinctrl-tb10x.c9
1 files changed, 4 insertions, 5 deletions
diff --git a/drivers/pinctrl/pinctrl-tb10x.c b/drivers/pinctrl/pinctrl-tb10x.c
index 2e1ea568c9a2..9f7fa9b6ea80 100644
--- a/drivers/pinctrl/pinctrl-tb10x.c
+++ b/drivers/pinctrl/pinctrl-tb10x.c
@@ -806,9 +806,8 @@ static int tb10x_pinctrl_probe(struct platform_device *pdev)
mutex_init(&state->mutex);
state->base = devm_ioremap_resource(dev, mem);
- if (!state->base) {
- dev_err(dev, "Request register region failed.\n");
- ret = -EBUSY;
+ if (IS_ERR(state->base)) {
+ ret = PTR_ERR(state->base);
goto fail;
}
@@ -830,9 +829,9 @@ static int tb10x_pinctrl_probe(struct platform_device *pdev)
}
state->pctl = pinctrl_register(&tb10x_pindesc, dev, state);
- if (IS_ERR(state->pctl)) {
+ if (!state->pctl) {
dev_err(dev, "could not register TB10x pin driver\n");
- ret = PTR_ERR(state->pctl);
+ ret = -EINVAL;
goto fail;
}