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jbd2: avoid memleak in jbd2_journal_write_metadata_buffer

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The new_bh is from alloc_buffer_head, we should call free_buffer_head to
free it in error case.

Signed-off-by: Kemeng Shi <shikemeng@huaweicloud.com>
Reviewed-by: Zhang Yi <yi.zhang@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20240514112438.1269037-2-shikemeng@huaweicloud.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This commit is contained in:
Kemeng Shi 2024-05-14 19:24:30 +08:00 committed by Theodore Ts'o
parent 8dc9c3da79
commit cc102aa246
1 changed files with 1 additions and 0 deletions
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fs/jbd2/journal.c
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@ -399,6 +399,7 @@ repeat:
tmp = jbd2_alloc(bh_in->b_size, GFP_NOFS);
if (!tmp) {
brelse(new_bh);
free_buffer_head(new_bh);
return -ENOMEM;
}
spin_lock(&jh_in->b_state_lock);