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swh:1:snp:c2847dfd741eae21606027cf29250d1ebcd63fb4
Revision 4d34b2789538befa45a68a191dc12e0886a69f7d authored by Ilya Dryomov on 08 November 2011, 22:08:15 UTC, committed by Ilya Dryomov on 09 November 2011, 20:53:38 UTC 
Btrfs: avoid null dereference and leaks when bailing from open_ctree()
 
Fix bugs introduced by 6c41761f.  Firstly, after failing to allocate any
of the tree roots (first 'goto fail' in open_ctree()) we would
dereference a NULL fs_info pointer in free_fs_info().  Secondly, after
failures from init_srcu_struct(), setup_bdi() and new_inode() we would
leak all earlier allocated roots: fs_info fields haven't been
initialized yet so free_fs_info() is rendered useless.

Fix this by initializing fs_info pointer and fs_info fields before any
allocations happen.

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
1 parent f23c8af
History
Tip revision: 53d5fc89d66a778577295020dc57bb3ccec84354 authored by Linus Torvalds on 01 October 2021, 21:45:23 UTC
Merge tag 's390-5.15-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Tip revision: 53d5fc8
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