From e97321fa095f1ea7110d4d2ba446bd6141ed9a03 Mon Sep 17 00:00:00 2001 From: Bob Peterson Date: Tue, 12 Apr 2016 16:14:26 -0400 Subject: [PATCH] GFS2: Don't dereference inode in gfs2_inode_lookup until it's valid Function gfs2_inode_lookup was dereferencing the inode, and after, it checks for the value being NULL. We need to check that first. Signed-off-by: Bob Peterson --- fs/gfs2/inode.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c index bb30f9a72c65..aea002ea94a6 100644 --- a/fs/gfs2/inode.c +++ b/fs/gfs2/inode.c @@ -93,12 +93,12 @@ struct inode *gfs2_inode_lookup(struct super_block *sb, unsigned int type, int error; inode = iget_locked(sb, (unsigned long)no_addr); - ip = GFS2_I(inode); - ip->i_no_addr = no_addr; - if (!inode) return ERR_PTR(-ENOMEM); + ip = GFS2_I(inode); + ip->i_no_addr = no_addr; + if (inode->i_state & I_NEW) { struct gfs2_sbd *sdp = GFS2_SB(inode); ip->i_no_formal_ino = no_formal_ino;