Re: [PATCH][next] bcache: Set error return err to -ENOMEM on allocation failure

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On 4/19/21 8:56 PM, Colin King wrote:
> From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
> 
> Currently when ns fails to be allocated the error return path returns
> an uninitialized return code in variable 'err'. Fix this by setting
> err to -ENOMEM.
> 
> Addresses-Coverity: ("Uninitialized scalar variable")
> Fixes: 688330711e9a ("bcache: initialize the nvm pages allocator")
> Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
> ---
>  drivers/md/bcache/nvm-pages.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/md/bcache/nvm-pages.c b/drivers/md/bcache/nvm-pages.c
> index 08cd45e90481..2e124d546099 100644
> --- a/drivers/md/bcache/nvm-pages.c
> +++ b/drivers/md/bcache/nvm-pages.c
> @@ -584,6 +584,7 @@ struct bch_nvm_namespace *bch_register_namespace(const char *dev_path)
>  		return ERR_PTR(PTR_ERR(bdev));
>  	}
>  
> +	err = -ENOMEM;
>  	ns = kzalloc(sizeof(struct bch_nvm_namespace), GFP_KERNEL);
>  	if (!ns)
>  		goto bdput;
> 

Copied, added into my queue for rc1.

Thanks.

Coly Li



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