GFS2: fix compilation warning about uninitialized var

fix the following warning:

fs/gfs2/inode.c:188:16: warning: ?inode? may be used uninitialized in this function

The warning is bogus as inode is not used in this function uninitialized.

Signed-off-by Bill Pemberton <[email protected]>

---
 fs/gfs2/inode.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

fs/gfs2/inode.c +1 -1

index 97d54a2..b888099 100644
@@ -185,7 +185,7 @@ struct inode *gfs2_lookup_by_inum(struct gfs2_sbd *sdp, u64 no_addr,
 {
 	struct super_block *sb = sdp->sd_vfs;
 	struct gfs2_holder i_gh;
-	struct inode *inode;
+	struct inode *uninitialized_var(inode);
 	int error;
 
 	error = gfs2_glock_nq_num(sdp, no_addr, &gfs2_inode_glops,