Release bitmap buffer_head we got if error occurs.
Besides, this patch remove unused assignment to err.
Signed-off-by: Kemeng Shi <shikemeng@xxxxxxxxxxxxxxx>
---
fs/ext4/mballoc.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 4e1caac74b44..17ac98c501ed 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -5848,13 +5848,12 @@ static void ext4_free_blocks_simple(struct inode *inode, ext4_fsblk_t block,
ext4_get_group_no_and_offset(sb, block, &group, &blkoff);
bitmap_bh = ext4_read_block_bitmap(sb, group);
if (IS_ERR(bitmap_bh)) {
- err = PTR_ERR(bitmap_bh);
pr_warn("Failed to read block bitmap\n");
return;
}
gdp = ext4_get_group_desc(sb, group, &gdp_bh);
if (!gdp)
- return;
+ goto err_out;
for (i = 0; i < count; i++) {
if (!mb_test_bit(blkoff + i, bitmap_bh->b_data))
@@ -5863,7 +5862,7 @@ static void ext4_free_blocks_simple(struct inode *inode, ext4_fsblk_t block,
mb_clear_bits(bitmap_bh->b_data, blkoff, count);
err = ext4_handle_dirty_metadata(NULL, NULL, bitmap_bh);
if (err)
- return;
+ goto err_out;
ext4_free_group_clusters_set(
sb, gdp, ext4_free_group_clusters(sb, gdp) +
count - already_freed);
@@ -5872,6 +5871,8 @@ static void ext4_free_blocks_simple(struct inode *inode, ext4_fsblk_t block,
ext4_handle_dirty_metadata(NULL, NULL, gdp_bh);
sync_dirty_buffer(bitmap_bh);
sync_dirty_buffer(gdp_bh);
+
+err_out:
brelse(bitmap_bh);
}
--
2.30.0
