Re: [PATCH] blk-mq: fix an IS_ERR() vs NULL bug

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To: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Subject: Re: [PATCH] blk-mq: fix an IS_ERR() vs NULL bug
From: Christoph Hellwig <hch@xxxxxx>
Date: Fri, 18 Jun 2021 16:07:28 +0200
Cc: Jens Axboe <axboe@xxxxxxxxx>, Christoph Hellwig <hch@xxxxxx>, Chaitanya Kulkarni <chaitanya.kulkarni@xxxxxxx>, linux-block@xxxxxxxxxxxxxxx, kernel-janitors@xxxxxxxxxxxxxxx
In-reply-to: <YMyjci35WBqrtqG+@mwanda>
References: <YMyjci35WBqrtqG+@mwanda>
User-agent: Mutt/1.5.17 (2007-11-01)

On Fri, Jun 18, 2021 at 04:45:22PM +0300, Dan Carpenter wrote:
> The __blk_mq_alloc_disk() function doesn't return NULLs it returns
> error pointers.
> 
> Fixes: b461dfc49eb6 ("blk-mq: add the blk_mq_alloc_disk APIs")
> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>

Looks good,

Reviewed-by: Christoph Hellwig <hch@xxxxxx>

References:
- [PATCH] blk-mq: fix an IS_ERR() vs NULL bug
  - From: Dan Carpenter

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