linux-kernel - [PATCH 0/2] /fs/partition/check.c : fix return value warning (V2)

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Date:	Tue, 13 May 2008 22:02:43 +0200
From:	Abdel Benamrouche <draconux@...il.com>
To:	akpm@...ux-foundation.org
Cc:	linux-kernel@...r.kernel.org, trivial@...nel.org
Subject: [PATCH 0/2] /fs/partition/check.c : fix return value warning (V2)

On Tue, May 13, 2008 at 12:27 AM, Andrew Morton <akpm@...ux-foundation.org> wrote:
> On Sat, 10 May 2008 13:40:53 +0200
>  Abdel Benamrouche <draconux@...il.com> wrote:
>  
>  > fs/partitions/check.c:381: warning: ignoring return value of ___device_add___,
>  >  declared with attribute warn_unused_result
>  >
>  > Signed-off-by: Abdel Benamrouche <draconux@...il.com>
>  > ---
>  > :100644 100644 6149e4b... 7a87fad... M        fs/partitions/check.c
>  >  fs/partitions/check.c |    8 +++++++-
>  >  1 files changed, 7 insertions(+), 1 deletions(-)
>  >
>  > diff --git a/fs/partitions/check.c b/fs/partitions/check.c
>  > index 6149e4b..7a87fad 100644
>  > --- a/fs/partitions/check.c
>  > +++ b/fs/partitions/check.c
>  > @@ -378,7 +378,13 @@ void add_partition(struct gendisk *disk, int part, sector_t start, sector_t len,
>  >
>  >       /* delay uevent until 'holders' subdir is created */
>  >       p->dev.uevent_suppress = 1;
>  > -     device_add(&p->dev);
>  > +     if (device_add(&p->dev)) {
>  > +             put_device(&p->dev);
>  > +             free_part_stats(p);
>  > +             kfree(p);
>  > +             return;
>  > +     }
>  > +
>  >       partition_sysfs_add_subdir(p);
>  >       p->dev.uevent_suppress = 0;
>  >       if (flags & ADDPART_FLAG_WHOLEDISK)
>  
>  We should go further than this.  add_partition() just drops the error
>  on the floor.  It should be propagated back to callers, and callers
>  should be modified to handle it appropriately.
>  
>  Presumably we should also handle a device_create_file() failure as well
>  - that is presently being silently ignored.
>  
>  

done.
I make 2 patch so that it will be easier to read.



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