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| author | Salah Triki <salah.triki@acm.org> | 2015-10-04 02:49:48 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-10-04 09:30:14 +0100 |
| commit | 51abf45c23872df0a43dbe849eb4439ebda6145f (patch) | |
| tree | b89016372e4bbc02e242fbe238181702fc29a2ca /drivers/staging/dgnc/dgnc_driver.h | |
| parent | 6d99d6a3cffdcbf1705ebd41b528fc31feaa7966 (diff) | |
| download | op-kernel-dev-51abf45c23872df0a43dbe849eb4439ebda6145f.zip op-kernel-dev-51abf45c23872df0a43dbe849eb4439ebda6145f.tar.gz | |
staging: dgnc: take a lock when storing value in dgnc_poll_tick
Reads of dgnc_poll_tick are protected by dgnc_poll_lock spinlock, but the write
to dgnc_poll_tick is not. It could theoretically race.
Signed-off-by: Salah Triki <salah.triki@acm.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/dgnc/dgnc_driver.h')
| -rw-r--r-- | drivers/staging/dgnc/dgnc_driver.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/staging/dgnc/dgnc_driver.h b/drivers/staging/dgnc/dgnc_driver.h index 06ece51..c61884c 100644 --- a/drivers/staging/dgnc/dgnc_driver.h +++ b/drivers/staging/dgnc/dgnc_driver.h @@ -390,6 +390,7 @@ struct channel_t { extern uint dgnc_Major; /* Our driver/mgmt major */ extern int dgnc_poll_tick; /* Poll interval - 20 ms */ extern spinlock_t dgnc_global_lock; /* Driver global spinlock */ +extern spinlock_t dgnc_poll_lock; /* Poll scheduling lock */ extern uint dgnc_NumBoards; /* Total number of boards */ extern struct dgnc_board *dgnc_Board[MAXBOARDS]; /* Array of board structs */ |
