Re: [PATCH] xfs: fix leaks on corruption errors in xfs_bmap.c

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On Mon, Nov 27, 2017 at 04:48:02PM -0600, Eric Sandeen wrote:
> Use _GOTO instead of _RETURN so we can free the allocated
> cursor on error.
> 
> Fixes: bf80628 ("xfs: remove xfs_bmse_shift_one")
> Fixes-coverity-id: 1423813
> Signed-off-by: Eric Sandeen <sandeen@xxxxxxxxxx>

Looks ok, will test
Reviewed-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>

> ---
> 
> Compile-tested only 
> 
> diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c
> index 08df809..87884aa 100644
> --- a/fs/xfs/libxfs/xfs_bmap.c
> +++ b/fs/xfs/libxfs/xfs_bmap.c
> @@ -5662,7 +5662,8 @@ static inline bool xfs_bmap_wants_extents(struct xfs_inode *ip, int whichfork)
>  		*done = true;
>  		goto del_cursor;
>  	}
> -	XFS_WANT_CORRUPTED_RETURN(mp, !isnullstartblock(got.br_startblock));
> +	XFS_WANT_CORRUPTED_GOTO(mp, !isnullstartblock(got.br_startblock),
> +				del_cursor);
>  
>  	new_startoff = got.br_startoff - offset_shift_fsb;
>  	if (xfs_iext_peek_prev_extent(ifp, &icur, &prev)) {
> @@ -5767,7 +5768,8 @@ static inline bool xfs_bmap_wants_extents(struct xfs_inode *ip, int whichfork)
>  			goto del_cursor;
>  		}
>  	}
> -	XFS_WANT_CORRUPTED_RETURN(mp, !isnullstartblock(got.br_startblock));
> +	XFS_WANT_CORRUPTED_GOTO(mp, !isnullstartblock(got.br_startblock),
> +				del_cursor);
>  
>  	if (stop_fsb >= got.br_startoff + got.br_blockcount) {
>  		error = -EIO;
> 
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