diff options
| author | Aniroop Mathur <aniroop.mathur@gmail.com> | 2014-12-03 23:27:42 +0100 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2014-12-04 00:27:17 +0100 |
| commit | 939ffb1712890ee22146d2dfc24adbc7da6afa84 (patch) | |
| tree | 32f55ccf440835f0c929b6c7b173ffd87e18f2c6 /drivers/input/serio | |
| parent | Input: initialize input_no to -1 to avoid subtraction (diff) | |
| download | linux-939ffb1712890ee22146d2dfc24adbc7da6afa84.tar.xz 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/serio')
| -rw-r--r-- | drivers/input/serio/serio.c | 4 | ||||
| -rw-r--r-- | drivers/input/serio/serio_raw.c | 4 |
2 files changed, 4 insertions, 4 deletions
diff --git a/drivers/input/serio/serio.c b/drivers/input/serio/serio.c index d399b8b0f000..a05a5179da32 100644 --- a/drivers/input/serio/serio.c +++ b/drivers/input/serio/serio.c @@ -514,7 +514,7 @@ static void serio_release_port(struct device *dev) */ static void serio_init_port(struct serio *serio) { - static atomic_t serio_no = ATOMIC_INIT(0); + static atomic_t serio_no = ATOMIC_INIT(-1); __module_get(THIS_MODULE); @@ -525,7 +525,7 @@ static void serio_init_port(struct serio *serio) mutex_init(&serio->drv_mutex); device_initialize(&serio->dev); dev_set_name(&serio->dev, "serio%lu", - (unsigned long)atomic_inc_return(&serio_no) - 1); + (unsigned long)atomic_inc_return(&serio_no)); serio->dev.bus = &serio_bus; serio->dev.release = serio_release_port; serio->dev.groups = serio_device_attr_groups; diff --git a/drivers/input/serio/serio_raw.c b/drivers/input/serio/serio_raw.c index c9a02fe57576..71ef5d65a0c6 100644 --- a/drivers/input/serio/serio_raw.c +++ b/drivers/input/serio/serio_raw.c @@ -292,7 +292,7 @@ static irqreturn_t serio_raw_interrupt(struct serio *serio, unsigned char data, static int serio_raw_connect(struct serio *serio, struct serio_driver *drv) { - static atomic_t serio_raw_no = ATOMIC_INIT(0); + static atomic_t serio_raw_no = ATOMIC_INIT(-1); struct serio_raw *serio_raw; int err; @@ -303,7 +303,7 @@ static int serio_raw_connect(struct serio *serio, struct serio_driver *drv) } snprintf(serio_raw->name, sizeof(serio_raw->name), - "serio_raw%ld", (long)atomic_inc_return(&serio_raw_no) - 1); + "serio_raw%ld", (long)atomic_inc_return(&serio_raw_no)); kref_init(&serio_raw->kref); INIT_LIST_HEAD(&serio_raw->client_list); init_waitqueue_head(&serio_raw->wait); |