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SubjectRe: [PATCH] btrfs: Fix an error handling path in btrfs_read_sys_array()
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Le 16/05/2022 à 17:01, David Sterba a écrit :
> On Mon, May 16, 2022 at 04:54:07PM +0300, Dan Carpenter wrote:
>> On Sun, May 15, 2022 at 06:57:25AM +0800, Qu Wenruo wrote:
>>>
>>>
>>> On 2022/5/14 20:01, Christophe JAILLET wrote:
>>>> If alloc_dummy_extent_buffer() we should return an error code, not 0 that
>>>> would mean success.
>>>>
>>>> Fixes: a1fc41ac28d3 ("btrfs: use dummy extent buffer for super block sys chunk array read")
>>>> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
>>>
>>> Reviewed-by: Qu Wenruo <wqu@suse.com>
>>>
>>> All my fault, thanks for catching it.
>>> Qu
>>>
>>
>> I sent this patch in January and David was going to fold it into the
>> original patch but it got lost. Thanks, Christophe!

Hi,

Not exactly.
Your patch was:
- if (IS_ERR(sb))
- return PTR_ERR(sb);
+ if (!sb)
+ return -ENOMEM;

Mine is only:
- return PTR_ERR(sb);
+ return -ENOMEM;

So for some reason, what you had reported was just half applied. (or
half fixed by someone else)

>
> I found my reply to your fix that I folded the fixup, but then it got
> lost for some reason. Probably because I picked the patchset from
> mailing list again and did not take the local branch. I'll fold the fix
> again as it' still in the unmerged branch. Thanks.
>

just in case, the Fixes tag in Dan's patch leads to:
"Notice: this object is not reachable from any branch."

I don't think that it is of any importance if the fix in folded, but in
case, I let you know.

CJ

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