[PATCH] [v3] block: Fix an error handling in add_partition

[PATCH] [v3] block: Fix an error handling in add_partition

[Dinghao Liu]

Once we have called device_initialize(), we should use put_device() to
give up the reference on error, just like what we have done on failure
of device_add().

Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
---

Changelog:

v2: - Refine commit message.

v3: - Add '[v3]' to the title.
---
 block/partitions/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/block/partitions/core.c b/block/partitions/core.c
index e7d776db803b..23460cee9de5 100644
--- a/block/partitions/core.c
+++ b/block/partitions/core.c
@@ -384,7 +384,7 @@ static struct block_device *add_partition(struct gendisk *disk, int partno,
 
 	err = blk_alloc_devt(bdev, &devt);
 	if (err)
-		goto out_bdput;
+		goto out_put;
 	pdev->devt = devt;
 
 	/* delay uevent until 'holders' subdir is created */
-- 
2.17.1

Re: [PATCH] [v3] block: Fix an error handling in add_partition

[Jan Kara]

On Sun 17-01-21 16:53:42, Dinghao Liu wrote:
> Once we have called device_initialize(), we should use put_device() to
> give up the reference on error, just like what we have done on failure
> of device_add().
> 
> Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>

Looks good to me. You can add:

Reviewed-by: Jan Kara <jack@suse.cz>

								Honza

> ---
> 
> Changelog:
> 
> v2: - Refine commit message.
> 
> v3: - Add '[v3]' to the title.
> ---
>  block/partitions/core.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/block/partitions/core.c b/block/partitions/core.c
> index e7d776db803b..23460cee9de5 100644
> --- a/block/partitions/core.c
> +++ b/block/partitions/core.c
> @@ -384,7 +384,7 @@ static struct block_device *add_partition(struct gendisk *disk, int partno,
>  
>  	err = blk_alloc_devt(bdev, &devt);
>  	if (err)
> -		goto out_bdput;
> +		goto out_put;
>  	pdev->devt = devt;
>  
>  	/* delay uevent until 'holders' subdir is created */
> -- 
> 2.17.1
> 
-- 
Jan Kara <jack@suse.com>
SUSE Labs, CR

Re: [PATCH] [v3] block: Fix an error handling in add_partition

[Chaitanya Kulkarni]

On 1/17/21 1:00 AM, Dinghao Liu wrote:
> Once we have called device_initialize(), we should use put_device() to
> give up the reference on error, just like what we have done on failure
> of device_add().
>
> Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Looks good.

Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>