diff mbox

[-next] imx6q-cpufreq: fix return value check in imx6q_cpufreq_probe()

Message ID CAPgLHd_sbN0i_6Lqh+-2o9rZx_CG3=czZJV3N6oAuSKrjkttbw@mail.gmail.com (mailing list archive)
State Accepted, archived
Headers show

Commit Message

Wei Yongjun Feb. 22, 2013, 4:39 a.m. UTC
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>

In case of error, the function devm_regulator_get() returns
ERR_PTR() and never returns NULL. The NULL test in the return
value check should be replaced with IS_ERR().

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
---
 drivers/cpufreq/imx6q-cpufreq.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)



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Comments

Viresh Kumar Feb. 22, 2013, 5:21 a.m. UTC | #1
On Fri, Feb 22, 2013 at 10:09 AM, Wei Yongjun <weiyj.lk@gmail.com> wrote:
> From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
>
> In case of error, the function devm_regulator_get() returns
> ERR_PTR() and never returns NULL. The NULL test in the return
> value check should be replaced with IS_ERR().
>
> Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
> ---
>  drivers/cpufreq/imx6q-cpufreq.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/cpufreq/imx6q-cpufreq.c b/drivers/cpufreq/imx6q-cpufreq.c
> index d6b6ef3..54e336d 100644
> --- a/drivers/cpufreq/imx6q-cpufreq.c
> +++ b/drivers/cpufreq/imx6q-cpufreq.c
> @@ -245,7 +245,7 @@ static int imx6q_cpufreq_probe(struct platform_device *pdev)
>         arm_reg = devm_regulator_get(cpu_dev, "arm");
>         pu_reg = devm_regulator_get(cpu_dev, "pu");
>         soc_reg = devm_regulator_get(cpu_dev, "soc");
> -       if (!arm_reg || !pu_reg || !soc_reg) {
> +       if (IS_ERR(arm_reg) || IS_ERR(pu_reg) || IS_ERR(soc_reg)) {

Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
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Shawn Guo Feb. 22, 2013, 12:53 p.m. UTC | #2
On Fri, Feb 22, 2013 at 12:39:30PM +0800, Wei Yongjun wrote:
> From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
> 
> In case of error, the function devm_regulator_get() returns
> ERR_PTR() and never returns NULL. The NULL test in the return
> value check should be replaced with IS_ERR().
> 
> Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>

Thanks for the fixing.

Acked-by: Shawn Guo <shawn.guo@linaro.org>

> ---
>  drivers/cpufreq/imx6q-cpufreq.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/cpufreq/imx6q-cpufreq.c b/drivers/cpufreq/imx6q-cpufreq.c
> index d6b6ef3..54e336d 100644
> --- a/drivers/cpufreq/imx6q-cpufreq.c
> +++ b/drivers/cpufreq/imx6q-cpufreq.c
> @@ -245,7 +245,7 @@ static int imx6q_cpufreq_probe(struct platform_device *pdev)
>  	arm_reg = devm_regulator_get(cpu_dev, "arm");
>  	pu_reg = devm_regulator_get(cpu_dev, "pu");
>  	soc_reg = devm_regulator_get(cpu_dev, "soc");
> -	if (!arm_reg || !pu_reg || !soc_reg) {
> +	if (IS_ERR(arm_reg) || IS_ERR(pu_reg) || IS_ERR(soc_reg)) {
>  		dev_err(cpu_dev, "failed to get regulators\n");
>  		ret = -ENOENT;
>  		goto put_node;
> 
> 

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diff mbox

Patch

diff --git a/drivers/cpufreq/imx6q-cpufreq.c b/drivers/cpufreq/imx6q-cpufreq.c
index d6b6ef3..54e336d 100644
--- a/drivers/cpufreq/imx6q-cpufreq.c
+++ b/drivers/cpufreq/imx6q-cpufreq.c
@@ -245,7 +245,7 @@  static int imx6q_cpufreq_probe(struct platform_device *pdev)
 	arm_reg = devm_regulator_get(cpu_dev, "arm");
 	pu_reg = devm_regulator_get(cpu_dev, "pu");
 	soc_reg = devm_regulator_get(cpu_dev, "soc");
-	if (!arm_reg || !pu_reg || !soc_reg) {
+	if (IS_ERR(arm_reg) || IS_ERR(pu_reg) || IS_ERR(soc_reg)) {
 		dev_err(cpu_dev, "failed to get regulators\n");
 		ret = -ENOENT;
 		goto put_node;