[PATCH -next] erofs: fix error return code in erofs_read_superblock()

[Chao Yu]

On 2021/5/20 16:40, Gao Xiang wrote:
> Hi Yongjun and Dan,
> 
> On Thu, May 20, 2021 at 08:32:26AM +0300, Dan Carpenter wrote:
>> On Wed, May 19, 2021 at 02:16:57PM +0000, Wei Yongjun wrote:
>>> 'ret' will be overwritten to 0 if erofs_sb_has_sb_chksum() return true,
>>> thus 0 will return in some error handling cases. Fix to return negative
>>> error code -EINVAL instead of 0.
>>>
>>> Reported-by: Hulk Robot <hulkci at huawei.com>
>>> Signed-off-by: Wei Yongjun <weiyongjun1 at huawei.com>
>>
>> You need to add Fixes tags to bug fix patches and you need to ensure
>> that the authors of the Fixes commit are CC'd so they can review your
>> fix.  get_maintainer.pl will add the author automatically, but normally
>> I like to put them in the To header to make sure they see it.
>>
>> Fixes: b858a4844cfb ("erofs: support superblock checksum")
> 
> The commit and the tag look good to me (sorry for a bit delay on this),
> 
> Fixes: b858a4844cfb ("erofs: support superblock checksum")
> Cc: stable <stable at vger.kernel.org> # 5.5+
> Reviewed-by: Gao Xiang <xiang at kernel.org>

Reviewed-by: Chao Yu <yuchao0 at huawei.com>

Thanks,

> 
> (will apply to dev-test for a while and then to -next.)
> 
> Thanks,
> Gao Xiang
> 
> .
>