[PATCH] wireless: marvell: add checks for the return value of sysfs_create_group

[PATCH] wireless: marvell: add checks for the return value of sysfs_create_group

[Kangjie Lu]

sysfs_create_group() could fail, so let's check its return values and
issue error messages if it fails.

Signed-off-by: Kangjie Lu <kjlu@umn.edu>
---
 drivers/net/wireless/marvell/libertas/mesh.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/wireless/marvell/libertas/mesh.c b/drivers/net/wireless/marvell/libertas/mesh.c
index b0cb16ef8d1d..90b20618e0af 100644
--- a/drivers/net/wireless/marvell/libertas/mesh.c
+++ b/drivers/net/wireless/marvell/libertas/mesh.c
@@ -797,7 +797,11 @@ static void lbs_persist_config_init(struct net_device *dev)
 {
 	int ret;
 	ret = sysfs_create_group(&(dev->dev.kobj), &boot_opts_group);
+	if (ret)
+		pr_err("failed to create boot_opts_group.\n");
 	ret = sysfs_create_group(&(dev->dev.kobj), &mesh_ie_group);
+	if (ret)
+		pr_err("failed to create mesh_ie_group.\n");
 }
 
 static void lbs_persist_config_remove(struct net_device *dev)
-- 
2.17.2 (Apple Git-113)

Re: [PATCH] wireless: marvell: add checks for the return value of sysfs_create_group

[Kalle Valo]

Kangjie Lu <kjlu@umn.edu> writes:

> sysfs_create_group() could fail, so let's check its return values and
> issue error messages if it fails.
>
> Signed-off-by: Kangjie Lu <kjlu@umn.edu>
> ---
>  drivers/net/wireless/marvell/libertas/mesh.c | 4 ++++

The correct prefix is "libertas: ".

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches#commit_title_is_wrong

> --- a/drivers/net/wireless/marvell/libertas/mesh.c
> +++ b/drivers/net/wireless/marvell/libertas/mesh.c
> @@ -797,7 +797,11 @@ static void lbs_persist_config_init(struct net_device *dev)
>  {
>  	int ret;
>  	ret = sysfs_create_group(&(dev->dev.kobj), &boot_opts_group);
> +	if (ret)
> +		pr_err("failed to create boot_opts_group.\n");

Please add an empty line here for readability and resend the patch as
v2.

>  	ret = sysfs_create_group(&(dev->dev.kobj), &mesh_ie_group);
> +	if (ret)
> +		pr_err("failed to create mesh_ie_group.\n");
>  }
>  
>  static void lbs_persist_config_remove(struct net_device *dev)

-- 
Kalle Valo

[PATCH v2] libertas: add checks for the return value of sysfs_create_group

[Kangjie Lu]

sysfs_create_group() could fail. The fix checkes its return values
and issue error messages if it fails.

Signed-off-by: Kangjie Lu <kjlu@umn.edu>
---
 drivers/net/wireless/marvell/libertas/mesh.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/wireless/marvell/libertas/mesh.c b/drivers/net/wireless/marvell/libertas/mesh.c
index b0cb16ef8d1d..2315fdff56c2 100644
--- a/drivers/net/wireless/marvell/libertas/mesh.c
+++ b/drivers/net/wireless/marvell/libertas/mesh.c
@@ -797,7 +797,12 @@ static void lbs_persist_config_init(struct net_device *dev)
 {
 	int ret;
 	ret = sysfs_create_group(&(dev->dev.kobj), &boot_opts_group);
+	if (ret)
+		pr_err("failed to create boot_opts_group.\n");
+
 	ret = sysfs_create_group(&(dev->dev.kobj), &mesh_ie_group);
+	if (ret)
+		pr_err("failed to create mesh_ie_group.\n");
 }
 
 static void lbs_persist_config_remove(struct net_device *dev)
-- 
2.17.1

Re: [PATCH v2] libertas: add checks for the return value of sysfs_create_group

[Kalle Valo]

Kangjie Lu <kjlu@umn.edu> wrote:

> sysfs_create_group() could fail. The fix checkes its return values
> and issue error messages if it fails.
> 
> Signed-off-by: Kangjie Lu <kjlu@umn.edu>

Patch applied to wireless-drivers-next.git, thanks.

434256833d8e libertas: add checks for the return value of sysfs_create_group

-- 
https://patchwork.kernel.org/patch/10752631/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches