diff mbox

[-next] x86/platform/mellanox: Fix return value check in mlxplat_init()

Message ID 1474717693-6191-1-git-send-email-weiyj.lk@gmail.com (mailing list archive)
State Deferred, archived
Headers show

Commit Message

Wei Yongjun Sept. 24, 2016, 11:48 a.m. UTC
From: Wei Yongjun <weiyongjun1@huawei.com>

In case of error, the function platform_device_register_simple()
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 <weiyongjun1@huawei.com>
---
 arch/x86/platform/mellanox/mlx-platform.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)


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Comments

Vadim Pasternak Sept. 24, 2016, 1:33 p.m. UTC | #1
> -----Original Message-----
> From: Wei Yongjun [mailto:weiyj.lk@gmail.com]
> Sent: Saturday, September 24, 2016 2:48 PM
> To: Vadim Pasternak <vadimp@mellanox.com>; Thomas Gleixner
> <tglx@linutronix.de>; Ingo Molnar <mingo@redhat.com>; H. Peter Anvin
> <hpa@zytor.com>
> Cc: Wei Yongjun <weiyongjun1@huawei.com>; x86@kernel.org; platform-
> driver-x86@vger.kernel.org
> Subject: [PATCH -next] x86/platform/mellanox: Fix return value check in
> mlxplat_init()
> 
> From: Wei Yongjun <weiyongjun1@huawei.com>
> 
> In case of error, the function platform_device_register_simple() 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 <weiyongjun1@huawei.com>
> ---
>  arch/x86/platform/mellanox/mlx-platform.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/x86/platform/mellanox/mlx-platform.c
> b/arch/x86/platform/mellanox/mlx-platform.c
> index e1dc152..7dcfcca 100644
> --- a/arch/x86/platform/mellanox/mlx-platform.c
> +++ b/arch/x86/platform/mellanox/mlx-platform.c
> @@ -200,8 +200,8 @@ static int __init mlxplat_init(void)
>  					mlxplat_lpc_resources,
>  					ARRAY_SIZE(mlxplat_lpc_resources));
> 
> -	if (!mlxplat_dev)
> -		return -ENOMEM;
> +	if (IS_ERR(mlxplat_dev))
> +		return PTR_ERR(mlxplat_dev);
> 

Acked-by: Vadim Pasternak <vadimp@mellanox.com>

>  	priv = devm_kzalloc(&mlxplat_dev->dev, sizeof(struct mlxplat_priv),
>  			    GFP_KERNEL);

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diff mbox

Patch

diff --git a/arch/x86/platform/mellanox/mlx-platform.c b/arch/x86/platform/mellanox/mlx-platform.c
index e1dc152..7dcfcca 100644
--- a/arch/x86/platform/mellanox/mlx-platform.c
+++ b/arch/x86/platform/mellanox/mlx-platform.c
@@ -200,8 +200,8 @@  static int __init mlxplat_init(void)
 					mlxplat_lpc_resources,
 					ARRAY_SIZE(mlxplat_lpc_resources));
 
-	if (!mlxplat_dev)
-		return -ENOMEM;
+	if (IS_ERR(mlxplat_dev))
+		return PTR_ERR(mlxplat_dev);
 
 	priv = devm_kzalloc(&mlxplat_dev->dev, sizeof(struct mlxplat_priv),
 			    GFP_KERNEL);