[PATCH] Input: locomokbd - use guard notation when acquiring spinlock

[PATCH] Input: locomokbd - use guard notation when acquiring spinlock

[Dmitry Torokhov]

Using guard notation makes the code more compact and error handling
more robust by ensuring that locks are released in all code paths
when control leaves critical section.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/keyboard/locomokbd.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/input/keyboard/locomokbd.c b/drivers/input/keyboard/locomokbd.c
index 4b0f8323c492..c501a93a4417 100644
--- a/drivers/input/keyboard/locomokbd.c
+++ b/drivers/input/keyboard/locomokbd.c
@@ -112,11 +112,10 @@ static inline void locomokbd_reset_col(unsigned long membase, int col)
 static void locomokbd_scankeyboard(struct locomokbd *locomokbd)
 {
 	unsigned int row, col, rowd;
-	unsigned long flags;
 	unsigned int num_pressed;
 	unsigned long membase = locomokbd->base;
 
-	spin_lock_irqsave(&locomokbd->lock, flags);
+	guard(spinlock_irqsave)(&locomokbd->lock);
 
 	locomokbd_charge_all(membase);
 
@@ -167,8 +166,6 @@ static void locomokbd_scankeyboard(struct locomokbd *locomokbd)
 		mod_timer(&locomokbd->timer, jiffies + SCAN_INTERVAL);
 	else
 		locomokbd->count_cancel = 0;
-
-	spin_unlock_irqrestore(&locomokbd->lock, flags);
 }
 
 /*
-- 
2.47.0.163.g1226f6d8fa-goog


-- 
Dmitry