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authorChunwei Chen <[email protected]>2016-07-19 12:02:33 -0700
committerBrian Behlendorf <[email protected]>2016-07-20 09:05:43 -0700
commitbe88e733a634ad0d7f20350e1a17ede51922d3ff (patch)
tree22c2f148e55d9f9029720ca04a238de92dfa2b3e /config/Rules.am
parent26a08b5ca94ffc96add1d2d9dfe7dc78a0945ef2 (diff)
Fix NULL pointer in zfs_preumount from 1d9b3bd
When zfs_domount fails zsb will be freed, and its caller mount_nodev/get_sb_nodev will do deactivate_locked_super and calls into zfs_preumount. In order to make sure we don't touch any nonexistent stuff, we must make sure s_fs_info is NULL in the fail path so zfs_preumount can easily check that. Signed-off-by: Chunwei Chen <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #4867 Issue #4854
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