orangefs_kill_sb(): deal with allocation failures
orangefs_fill_sb() might've failed to allocate ORANGEFS_SB(s); don't oops in that case. Cc: stable@kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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@ -579,6 +579,11 @@ void orangefs_kill_sb(struct super_block *sb)
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/* provided sb cleanup */
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kill_anon_super(sb);
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if (!ORANGEFS_SB(sb)) {
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mutex_lock(&orangefs_request_mutex);
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mutex_unlock(&orangefs_request_mutex);
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return;
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}
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/*
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* issue the unmount to userspace to tell it to remove the
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* dynamic mount info it has for this superblock
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