GFS2: More automated code analysis fixes
A potentially uninitialised variable, some unreachable code,
and the main part of this, fixing the error path in the
unlink function.
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index cfd4959..377920d 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -1037,12 +1037,14 @@
struct buffer_head *bh;
struct gfs2_holder ghs[3];
struct gfs2_rgrpd *rgd;
- int error;
+ int error = -EROFS;
gfs2_holder_init(dip->i_gl, LM_ST_EXCLUSIVE, 0, ghs);
gfs2_holder_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, ghs + 1);
rgd = gfs2_blk2rgrpd(sdp, ip->i_no_addr);
+ if (!rgd)
+ goto out_inodes;
gfs2_holder_init(rgd->rd_gl, LM_ST_EXCLUSIVE, 0, ghs + 2);
@@ -1088,12 +1090,13 @@
out_gunlock:
gfs2_glock_dq(ghs + 2);
out_rgrp:
- gfs2_holder_uninit(ghs + 2);
gfs2_glock_dq(ghs + 1);
out_child:
- gfs2_holder_uninit(ghs + 1);
gfs2_glock_dq(ghs);
out_parent:
+ gfs2_holder_uninit(ghs + 2);
+out_inodes:
+ gfs2_holder_uninit(ghs + 1);
gfs2_holder_uninit(ghs);
return error;
}
