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staging: dgap: remove unnecessary dgap_global_lock 

dgap_global_lock is no longer required. This patch
removes it.

Signed-off-by: Mark Hounschell <markh@compro.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Mark Hounschell 2014-03-04 16:03:08 -05:00 committed by Greg Kroah-Hartman
parent 54794d196b
commit a9072fe056
1 changed files with 1 additions and 9 deletions
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10
drivers/staging/dgap/dgap.c
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@ -240,7 +240,6 @@ static const struct file_operations DgapBoardFops = {
*/
static uint dgap_NumBoards;
static struct board_t *dgap_Board[MAXBOARDS];
DEFINE_SPINLOCK(dgap_global_lock);
static ulong dgap_poll_counter;
static char *dgap_config_buf;
static int dgap_driver_state = DRIVER_INITIALIZED;
@ -1264,10 +1263,6 @@ static int dgap_ms_sleep(ulong ms)
*/
static int dgap_tty_preinit(void)
{
unsigned long flags;
DGAP_LOCK(dgap_global_lock, flags);
/*
* Allocate a buffer for doing the copy from user space to
* kernel space in dgap_input(). We only use one buffer and
@ -1276,12 +1271,9 @@ static int dgap_tty_preinit(void)
*/
dgap_TmpWriteBuf = kmalloc(WRITEBUFLEN, GFP_ATOMIC);
if (!dgap_TmpWriteBuf) {
DGAP_UNLOCK(dgap_global_lock, flags);
if (!dgap_TmpWriteBuf)
return -ENOMEM;
}
DGAP_UNLOCK(dgap_global_lock, flags);
return 0;
}