Commit d1807793 authored by Zoltan Menyhart's avatar Zoltan Menyhart Committed by Linus Torvalds
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[PATCH] JBD: memory leak in "journal_init_dev()" 



We leak a bh ref in "journal_init_dev()" in case of failure.

Signed-off-by: default avatarZoltan Menyhart <Zoltan.Menyhart@bull.net>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent f71b2f10

fs/jbd/journal.c

+10 −11
Original line number Diff line number Diff line
@@ -715,18 +715,8 @@ journal_t * journal_init_dev(struct block_device *bdev, 
	if (!journal)

		return NULL;



	journal->j_dev = bdev;

	journal->j_fs_dev = fs_dev;

	journal->j_blk_offset = start;

	journal->j_maxlen = len;

	journal->j_blocksize = blocksize;



	bh = __getblk(journal->j_dev, start, journal->j_blocksize);

	J_ASSERT(bh != NULL);

	journal->j_sb_buffer = bh;

	journal->j_superblock = (journal_superblock_t *)bh->b_data;



	/* journal descriptor can store up to n blocks -bzzz */

	journal->j_blocksize = blocksize;

	n = journal->j_blocksize / sizeof(journal_block_tag_t);

	journal->j_wbufsize = n;

	journal->j_wbuf = kmalloc(n * sizeof(struct buffer_head*), GFP_KERNEL);
@@ -736,6 +726,15 @@ journal_t * journal_init_dev(struct block_device *bdev, 
		kfree(journal);

		journal = NULL;

	}

	journal->j_dev = bdev;

	journal->j_fs_dev = fs_dev;

	journal->j_blk_offset = start;

	journal->j_maxlen = len;



	bh = __getblk(journal->j_dev, start, journal->j_blocksize);

	J_ASSERT(bh != NULL);

	journal->j_sb_buffer = bh;

	journal->j_superblock = (journal_superblock_t *)bh->b_data;



	return journal;

}