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GFS2: Don't dereference inode in gfs2_inode_lookup until it's valid

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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 <rpeterso@redhat.com>
This commit is contained in:
Bob Peterson 2016-04-12 16:14:26 -04:00
parent a527b38e14
commit e97321fa09
1 changed files with 3 additions and 3 deletions
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6
fs/gfs2/inode.c
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@ -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;