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authorSteven Whitehouse <swhiteho@redhat.com>2011-11-08 14:04:20 +0000
committerSteven Whitehouse <swhiteho@redhat.com>2011-11-08 14:04:20 +0000
commit87654896ca619ff64f94d3881d6bd0ec7b29e25f (patch)
treed5f19dca46c1d6aaa20a3a13acfe739eec0cc203
parentdfe4d34b39b80faff52489f950a18523da7581bf (diff)
downloadop-kernel-dev-87654896ca619ff64f94d3881d6bd0ec7b29e25f.zip
op-kernel-dev-87654896ca619ff64f94d3881d6bd0ec7b29e25f.tar.gz
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>
-rw-r--r--fs/gfs2/bmap.c3
-rw-r--r--fs/gfs2/file.c2
-rw-r--r--fs/gfs2/inode.c9
3 files changed, 7 insertions, 7 deletions
diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c
index 41d494d..f6be14f 100644
--- a/fs/gfs2/bmap.c
+++ b/fs/gfs2/bmap.c
@@ -743,9 +743,6 @@ static int do_strip(struct gfs2_inode *ip, struct buffer_head *dibh,
else if (ip->i_depth)
revokes = sdp->sd_inptrs;
- if (error)
- return error;
-
memset(&rlist, 0, sizeof(struct gfs2_rgrp_list));
bstart = 0;
blen = 0;
diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c
index 46f6f9a..6336bc6 100644
--- a/fs/gfs2/file.c
+++ b/fs/gfs2/file.c
@@ -609,7 +609,7 @@ static int gfs2_fsync(struct file *file, loff_t start, loff_t end,
struct inode *inode = mapping->host;
int sync_state = inode->i_state & (I_DIRTY_SYNC|I_DIRTY_DATASYNC);
struct gfs2_inode *ip = GFS2_I(inode);
- int ret, ret1 = 0;
+ int ret = 0, ret1 = 0;
if (mapping->nrpages) {
ret1 = filemap_fdatawrite_range(mapping, start, end);
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 @@ static int gfs2_unlink(struct inode *dir, struct dentry *dentry)
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_end_trans:
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;
}
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