diff options
| author | Aniroop Mathur | 2014-12-03 23:27:42 +0100 |
|---|---|---|
| committer | Dmitry Torokhov | 2014-12-04 00:27:17 +0100 |
| commit | 939ffb1712890ee22146d2dfc24adbc7da6afa84 (patch) | |
| tree | 32f55ccf440835f0c929b6c7b173ffd87e18f2c6 /drivers/input/gameport | |
| parent | Input: initialize input_no to -1 to avoid subtraction (diff) | |
| download | kernel-qcow2-linux-939ffb1712890ee22146d2dfc24adbc7da6afa84.tar.gz kernel-qcow2-linux-939ffb1712890ee22146d2dfc24adbc7da6afa84.tar.xz kernel-qcow2-linux-939ffb1712890ee22146d2dfc24adbc7da6afa84.zip | |
Input: initialize device counter variables with -1
Let's initialize atomic_t variables keeping track of number of various
devices created so far with -1 in order to avoid extra subtraction
operation.
Signed-off-by: Aniroop Mathur <aniroop.mathur@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input/gameport')
| -rw-r--r-- | drivers/input/gameport/gameport.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/input/gameport/gameport.c b/drivers/input/gameport/gameport.c index e29c04e2aff4..e853a2134680 100644 --- a/drivers/input/gameport/gameport.c +++ b/drivers/input/gameport/gameport.c @@ -527,14 +527,14 @@ EXPORT_SYMBOL(gameport_set_phys); */ static void gameport_init_port(struct gameport *gameport) { - static atomic_t gameport_no = ATOMIC_INIT(0); + static atomic_t gameport_no = ATOMIC_INIT(-1); __module_get(THIS_MODULE); mutex_init(&gameport->drv_mutex); device_initialize(&gameport->dev); dev_set_name(&gameport->dev, "gameport%lu", - (unsigned long)atomic_inc_return(&gameport_no) - 1); + (unsigned long)atomic_inc_return(&gameport_no)); gameport->dev.bus = &gameport_bus; gameport->dev.release = gameport_release_port; if (gameport->parent) |