[XFS] Use uninitialized_var macro to stop warning about rtx

Appease gcc in regards to "warning: 'rtx' is used uninitialized in
this function".

SGI-PV: 907752
SGI-Modid: xfs-linux-melb:xfs-kern:29007a

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Tim Shimmin <tes@sgi.com>

diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c
index 183add2f21b721b7752ae9ec6c1686ced63ff7b3..09d86388bb711641b275d9263d27d32ca1d772a8 100644 (file)
--- a/fs/xfs/xfs_bmap.c
+++ b/fs/xfs/xfs_bmap.c
@@ -2605,7 +2605,6 @@ xfs_bmap_rtalloc(
        xfs_extlen_t    prod = 0;       /* product factor for allocators */
        xfs_extlen_t    ralen = 0;      /* realtime allocation length */
        xfs_extlen_t    align;          /* minimum allocation alignment */
-       xfs_rtblock_t   rtx;            /* realtime extent number */
        xfs_rtblock_t   rtb;
 
        mp = ap->ip->i_mount;
@@ -2643,6 +2642,8 @@ xfs_bmap_rtalloc(
         * pick an extent that will space things out in the rt area.
         */
        if (ap->eof && ap->off == 0) {
+               xfs_rtblock_t uninitialized_var(rtx); /* realtime extent no */
+
                error = xfs_rtpick_extent(mp, ap->tp, ralen, &rtx);
                if (error)
                        return error;