From cea5794122125bf67559906a0762186cf417099c Mon Sep 17 00:00:00 2001
From: Vasily Averin <vvs@virtuozzo.com>
Date: Sat, 3 Nov 2018 16:22:10 -0400
Subject: [PATCH] ext4: add missing brelse() in set_flexbg_block_bitmap()'s
 error path
Git-commit: cea5794122125bf67559906a0762186cf417099c
Patch-mainline: v4.20-rc2
References: bsc#1117794

Fixes: 33afdcc5402d ("ext4: add a function which sets up group blocks ...")
Cc: stable@kernel.org # 3.3
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Acked-by: Jan Kara <jack@suse.cz>

---
 fs/ext4/resize.c |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -443,16 +443,18 @@ static int set_flexbg_block_bitmap(struc
 
 		BUFFER_TRACE(bh, "get_write_access");
 		err = ext4_journal_get_write_access(handle, bh);
-		if (err)
+		if (err) {
+			brelse(bh);
 			return err;
+		}
 		ext4_debug("mark block bitmap %#04llx (+%llu/%u)\n", block,
 			   block - start, count2);
 		ext4_set_bits(bh->b_data, block - start, count2);
 
 		err = ext4_handle_dirty_metadata(handle, NULL, bh);
+		brelse(bh);
 		if (unlikely(err))
 			return err;
-		brelse(bh);
 	}
 
 	return 0;