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authorAl Viro <viro@zeniv.linux.org.uk>2012-01-09 15:53:24 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2012-01-09 15:57:20 -0500
commit94bf608a18fa4421315275a81c5489734599297a (patch)
tree69b0022e0f47a5af7888c7e97459302373bfa338 /fs
parent8fdd8c49fe50394fef3e193db27222cb03c2b212 (diff)
ext4: fix failure exits
a) leaking root dentry is bad b) in case of failed ext4_mb_init() we don't want to do ext4_mb_release() c) OTOH, in the same case we *do* want ext4_ext_release() Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs')
-rw-r--r--fs/ext4/super.c13
1 files changed, 8 insertions, 5 deletions
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 64e2529ae9b..ed3ce82e2de 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -3733,10 +3733,12 @@ no_journal:
}
if (!S_ISDIR(root->i_mode) || !root->i_blocks || !root->i_size) {
ext4_msg(sb, KERN_ERR, "corrupt root inode, run e2fsck");
+ iput(root);
goto failed_mount4;
}
sb->s_root = d_alloc_root(root);
if (!sb->s_root) {
+ iput(root);
ext4_msg(sb, KERN_ERR, "get root dentry failed");
ret = -ENOMEM;
goto failed_mount4;
@@ -3773,7 +3775,7 @@ no_journal:
if (err) {
ext4_msg(sb, KERN_ERR, "failed to initialize system "
"zone (%d)", err);
- goto failed_mount4;
+ goto failed_mount4a;
}
ext4_ext_init(sb);
@@ -3830,13 +3832,14 @@ cantfind_ext4:
failed_mount7:
ext4_unregister_li_request(sb);
failed_mount6:
- ext4_ext_release(sb);
-failed_mount5:
ext4_mb_release(sb);
+failed_mount5:
+ ext4_ext_release(sb);
ext4_release_system_zone(sb);
-failed_mount4:
- iput(root);
+failed_mount4a:
+ dput(sb->s_root);
sb->s_root = NULL;
+failed_mount4:
ext4_msg(sb, KERN_ERR, "mount failed");
destroy_workqueue(EXT4_SB(sb)->dio_unwritten_wq);
failed_mount_wq: