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| author | Dave Chinner <dchinner@redhat.com> | 2014-10-02 09:05:32 +1000 |
|---|---|---|
| committer | Dave Chinner <david@fromorbit.com> | 2014-10-02 09:05:32 +1000 |
| commit | ba3726742c1712c43c5a18245476f3fe9fe74773 (patch) | |
| tree | 6d0d0b63f3785fff34b194a9bf4da785e9abeba6 /fs/xfs/xfs_buf.h | |
| parent | 595bff75dce51e0d6d94877b4b6d11b4747a63fd (diff) | |
| download | linux-stable-ba3726742c1712c43c5a18245476f3fe9fe74773.tar.gz linux-stable-ba3726742c1712c43c5a18245476f3fe9fe74773.tar.bz2 linux-stable-ba3726742c1712c43c5a18245476f3fe9fe74773.zip | |
xfs: check xfs_buf_read_uncached returns correctly
xfs_buf_read_uncached() has two failure modes. If can either return
NULL or bp->b_error != 0 depending on the type of failure, and not
all callers check for both. Fix it so that xfs_buf_read_uncached()
always returns the error status, and the buffer is returned as a
function parameter. The buffer will only be returned on success.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Diffstat (limited to 'fs/xfs/xfs_buf.h')
| -rw-r--r-- | fs/xfs/xfs_buf.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/fs/xfs/xfs_buf.h b/fs/xfs/xfs_buf.h index 0acfc30ec0fd..82002c00af90 100644 --- a/fs/xfs/xfs_buf.h +++ b/fs/xfs/xfs_buf.h @@ -269,9 +269,9 @@ int xfs_buf_associate_memory(struct xfs_buf *bp, void *mem, size_t length); struct xfs_buf *xfs_buf_get_uncached(struct xfs_buftarg *target, size_t numblks, int flags); -struct xfs_buf *xfs_buf_read_uncached(struct xfs_buftarg *target, - xfs_daddr_t daddr, size_t numblks, int flags, - const struct xfs_buf_ops *ops); +int xfs_buf_read_uncached(struct xfs_buftarg *target, xfs_daddr_t daddr, + size_t numblks, int flags, struct xfs_buf **bpp, + const struct xfs_buf_ops *ops); void xfs_buf_hold(struct xfs_buf *bp); /* Releasing Buffers */ |