[PATCH -next] irqchip/irq-qcom-mpm: fix return value check in qcom_mpm_init()

[PATCH -next] irqchip/irq-qcom-mpm: fix return value check in qcom_mpm_init()

[Yang Yingliang]

If devm_platform_ioremap_resource() fails, it never returns
NULL, replace NULL check with IS_ERR().

Fixes: a6199bb514d8 ("irqchip: Add Qualcomm MPM controller driver")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
---
 drivers/irqchip/irq-qcom-mpm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/irqchip/irq-qcom-mpm.c b/drivers/irqchip/irq-qcom-mpm.c
index eea5a753618c..d30614661eea 100644
--- a/drivers/irqchip/irq-qcom-mpm.c
+++ b/drivers/irqchip/irq-qcom-mpm.c
@@ -375,7 +375,7 @@ static int qcom_mpm_init(struct device_node *np, struct device_node *parent)
 	raw_spin_lock_init(&priv->lock);
 
 	priv->base = devm_platform_ioremap_resource(pdev, 0);
-	if (!priv->base)
+	if (IS_ERR(priv->base))
 		return PTR_ERR(priv->base);
 
 	for (i = 0; i < priv->reg_stride; i++) {
-- 
2.25.1

Re: [PATCH -next] irqchip/irq-qcom-mpm: fix return value check in qcom_mpm_init()

[Shawn Guo]

On Wed, Mar 16, 2022 at 10:51:00AM +0800, Yang Yingliang wrote:
> If devm_platform_ioremap_resource() fails, it never returns
> NULL, replace NULL check with IS_ERR().
> 
> Fixes: a6199bb514d8 ("irqchip: Add Qualcomm MPM controller driver")
> Reported-by: Hulk Robot <hulkci@huawei.com>
> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
> ---
>  drivers/irqchip/irq-qcom-mpm.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/irqchip/irq-qcom-mpm.c b/drivers/irqchip/irq-qcom-mpm.c
> index eea5a753618c..d30614661eea 100644
> --- a/drivers/irqchip/irq-qcom-mpm.c
> +++ b/drivers/irqchip/irq-qcom-mpm.c
> @@ -375,7 +375,7 @@ static int qcom_mpm_init(struct device_node *np, struct device_node *parent)
>  	raw_spin_lock_init(&priv->lock);
>  
>  	priv->base = devm_platform_ioremap_resource(pdev, 0);
> -	if (!priv->base)
> +	if (IS_ERR(priv->base))

Oops!  Thanks for the fixing!

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

>  		return PTR_ERR(priv->base);
>  
>  	for (i = 0; i < priv->reg_stride; i++) {
> -- 
> 2.25.1
> 

[irqchip: irq/irqchip-next] irqchip/irq-qcom-mpm: fix return value check in qcom_mpm_init()

[irqchip-bot for Yang Yingliang]

The following commit has been merged into the irq/irqchip-next branch of irqchip:

Commit-ID:     294aee8ab6cb5d44cde4defcda43324a25c64118
Gitweb:        https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms/294aee8ab6cb5d44cde4defcda43324a25c64118
Author:        Yang Yingliang <yangyingliang@huawei.com>
AuthorDate:    Wed, 16 Mar 2022 10:51:00 +08:00
Committer:     Marc Zyngier <maz@kernel.org>
CommitterDate: Thu, 17 Mar 2022 15:30:35 

irqchip/irq-qcom-mpm: fix return value check in qcom_mpm_init()

If devm_platform_ioremap_resource() fails, it never returns
NULL, replace NULL check with IS_ERR().

Fixes: a6199bb514d8 ("irqchip: Add Qualcomm MPM controller driver")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220316025100.1758413-1-yangyingliang@huawei.com
---
 drivers/irqchip/irq-qcom-mpm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/irqchip/irq-qcom-mpm.c b/drivers/irqchip/irq-qcom-mpm.c
index eea5a75..d306146 100644
--- a/drivers/irqchip/irq-qcom-mpm.c
+++ b/drivers/irqchip/irq-qcom-mpm.c
@@ -375,7 +375,7 @@ static int qcom_mpm_init(struct device_node *np, struct device_node *parent)
 	raw_spin_lock_init(&priv->lock);
 
 	priv->base = devm_platform_ioremap_resource(pdev, 0);
-	if (!priv->base)
+	if (IS_ERR(priv->base))
 		return PTR_ERR(priv->base);
 
 	for (i = 0; i < priv->reg_stride; i++) {

[irqchip: irq/irqchip-fixes] irqchip/irq-qcom-mpm: fix return value check in qcom_mpm_init()

[irqchip-bot for Yang Yingliang]

The following commit has been merged into the irq/irqchip-fixes branch of irqchip:

Commit-ID:     76ff614a79152cee07a2c48080c3dc91c56f0f1d
Gitweb:        https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms/76ff614a79152cee07a2c48080c3dc91c56f0f1d
Author:        Yang Yingliang <yangyingliang@huawei.com>
AuthorDate:    Wed, 16 Mar 2022 10:51:00 +08:00
Committer:     Marc Zyngier <maz@kernel.org>
CommitterDate: Tue, 05 Apr 2022 16:33:13 +01:00

irqchip/irq-qcom-mpm: fix return value check in qcom_mpm_init()

If devm_platform_ioremap_resource() fails, it never returns
NULL, replace NULL check with IS_ERR().

Fixes: a6199bb514d8 ("irqchip: Add Qualcomm MPM controller driver")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220316025100.1758413-1-yangyingliang@huawei.com
---
 drivers/irqchip/irq-qcom-mpm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/irqchip/irq-qcom-mpm.c b/drivers/irqchip/irq-qcom-mpm.c
index eea5a75..d306146 100644
--- a/drivers/irqchip/irq-qcom-mpm.c
+++ b/drivers/irqchip/irq-qcom-mpm.c
@@ -375,7 +375,7 @@ static int qcom_mpm_init(struct device_node *np, struct device_node *parent)
 	raw_spin_lock_init(&priv->lock);
 
 	priv->base = devm_platform_ioremap_resource(pdev, 0);
-	if (!priv->base)
+	if (IS_ERR(priv->base))
 		return PTR_ERR(priv->base);
 
 	for (i = 0; i < priv->reg_stride; i++) {