Initialise mid_q_entry before putting it on the pending queue

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A user reported a crash in cifs_demultiplex_thread() caused by an
incorrectly set mid_q_entry->callback() function. It appears that the
callback assignment made in cifs_call_async() was not flushed back to
memory suggesting that a memory barrier was required here. Changing the
code to make sure that the mid_q_entry structure was completely
initialised before it was added to the pending queue fixes the problem.

Signed-off-by: Sachin Prabhu <sprabhu@redhat.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Reviewed-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com>
Signed-off-by: Steve French <smfrench@gmail.com>

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Sachin Prabhu 2012-07-11 12:28:05 +01:00 • committed by Steve French

parent 055c9fa887

commit ffc61ccbb9

1 changed files with 14 additions and 12 deletions

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fs/cifs/transport.c

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