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authorThomas Gleixner <tglx@linutronix.de>2009-07-03 09:44:46 -0400
committerIngo Molnar <mingo@elte.hu>2011-09-13 05:12:14 -0400
commitbd31b85960a7fcb2d7ede216460b8da71a88411c (patch)
treef2ab1a1105705856c5cdfc71bcf3f7b5f897d30d /arch/arm/mach-footbridge/netwinder-leds.c
parenta1741e7fcbc19a67520115df480ab17012cc3d0b (diff)
locking, ARM: Annotate low level hw locks as raw
Annotate the low level hardware locks which must not be preempted. In mainline this change documents the low level nature of the lock - otherwise there's no functional difference. Lockdep and Sparse checking will work as usual. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/arm/mach-footbridge/netwinder-leds.c')
-rw-r--r--arch/arm/mach-footbridge/netwinder-leds.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/arch/arm/mach-footbridge/netwinder-leds.c b/arch/arm/mach-footbridge/netwinder-leds.c
index 00269fe0be8a..e57102e871fc 100644
--- a/arch/arm/mach-footbridge/netwinder-leds.c
+++ b/arch/arm/mach-footbridge/netwinder-leds.c
@@ -31,13 +31,13 @@
31static char led_state; 31static char led_state;
32static char hw_led_state; 32static char hw_led_state;
33 33
34static DEFINE_SPINLOCK(leds_lock); 34static DEFINE_RAW_SPINLOCK(leds_lock);
35 35
36static void netwinder_leds_event(led_event_t evt) 36static void netwinder_leds_event(led_event_t evt)
37{ 37{
38 unsigned long flags; 38 unsigned long flags;
39 39
40 spin_lock_irqsave(&leds_lock, flags); 40 raw_spin_lock_irqsave(&leds_lock, flags);
41 41
42 switch (evt) { 42 switch (evt) {
43 case led_start: 43 case led_start:
@@ -117,12 +117,12 @@ static void netwinder_leds_event(led_event_t evt)
117 break; 117 break;
118 } 118 }
119 119
120 spin_unlock_irqrestore(&leds_lock, flags); 120 raw_spin_unlock_irqrestore(&leds_lock, flags);
121 121
122 if (led_state & LED_STATE_ENABLED) { 122 if (led_state & LED_STATE_ENABLED) {
123 spin_lock_irqsave(&nw_gpio_lock, flags); 123 raw_spin_lock_irqsave(&nw_gpio_lock, flags);
124 nw_gpio_modify_op(GPIO_RED_LED | GPIO_GREEN_LED, hw_led_state); 124 nw_gpio_modify_op(GPIO_RED_LED | GPIO_GREEN_LED, hw_led_state);
125 spin_unlock_irqrestore(&nw_gpio_lock, flags); 125 raw_spin_unlock_irqrestore(&nw_gpio_lock, flags);
126 } 126 }
127} 127}
128 128