shithub: lwext4

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ext4_journal: fix error handling in jbd_get_fs

--- a/src/ext4_journal.c

+++ b/src/ext4_journal.c

@@ -458,24 +458,25 @@

 	rc = ext4_fs_get_inode_ref(fs,

 				   journal_ino,

 				   &jbd_fs->inode_ref);

-	if (rc != EOK) {

-		memset(jbd_fs, 0, sizeof(struct jbd_fs));

+	if (rc != EOK)

 		return rc;

-	}

+

 	rc = jbd_sb_read(jbd_fs, &jbd_fs->sb);

-	if (rc != EOK) {

-		memset(jbd_fs, 0, sizeof(struct jbd_fs));

-		ext4_fs_put_inode_ref(&jbd_fs->inode_ref);

-		return rc;

-	}

+	if (rc != EOK)

+		goto Error;

+

 	if (!jbd_verify_sb(&jbd_fs->sb)) {

-		memset(jbd_fs, 0, sizeof(struct jbd_fs));

-		ext4_fs_put_inode_ref(&jbd_fs->inode_ref);

 		rc = EIO;

+		goto Error;

 	}

 	if (rc == EOK)

 		jbd_fs->bdev = fs->bdev;

+

+	return rc;

+Error:

+	ext4_fs_put_inode_ref(&jbd_fs->inode_ref);

+	memset(jbd_fs, 0, sizeof(struct jbd_fs));

 	return rc;

 }