ext4: fix error handling in ext4_create_journal

Fix error handling in ext4_create_journal according to kernel conventions.

Signed-off-by: Borislav Petkov <bbpetkov@yahoo.de>
Cc: <linux-ext4@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index bd9aff9..adcbfad 100644 (file)
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -2158,6 +2158,7 @@ static int ext4_create_journal(struct super_block * sb,
                               unsigned int journal_inum)
 {
        journal_t *journal;
+       int err;
 
        if (sb->s_flags & MS_RDONLY) {
                printk(KERN_ERR "EXT4-fs: readonly filesystem when trying to "
@@ -2165,13 +2166,15 @@ static int ext4_create_journal(struct super_block * sb,
                return -EROFS;
        }
 
-       if (!(journal = ext4_get_journal(sb, journal_inum)))
+       journal = ext4_get_journal(sb, journal_inum);
+       if (!journal)
                return -EINVAL;
 
        printk(KERN_INFO "EXT4-fs: creating new journal on inode %u\n",
               journal_inum);
 
-       if (jbd2_journal_create(journal)) {
+       err = jbd2_journal_create(journal);
+       if (err) {
                printk(KERN_ERR "EXT4-fs: error creating journal.\n");
                jbd2_journal_destroy(journal);
                return -EIO;