ext4: minor fix in jbd2 stats kmalloc failure case

From: Eric Sandeen <sandeen@redhat.com>

The other instance of this problem was caught, but this one got missed:
Free the correct pointer on s->stats allocation failure in jbd2_seq_info_open

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Mingming Cao <cmm@us.ibm.com>

---

Index: linux-2.6.24-rc3/fs/jbd2/journal.c
===================================================================
--- linux-2.6.24-rc3.orig/fs/jbd2/journal.c
+++ linux-2.6.24-rc3/fs/jbd2/journal.c
@@ -850,7 +850,7 @@ static int jbd2_seq_info_open(struct ino
 		return -EIO;
 	size = sizeof(struct transaction_stats_s);
 	s->stats = kmalloc(size, GFP_KERNEL);
-	if (s == NULL) {
+	if (s->stats == NULL) {
 		kfree(s);
 		return -EIO;
 	}


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