diff options
author | Thomas Gleixner <tglx@linutronix.de> | 2009-07-03 09:44:46 -0400 |
---|---|---|
committer | Ingo Molnar <mingo@elte.hu> | 2011-09-13 05:12:14 -0400 |
commit | bd31b85960a7fcb2d7ede216460b8da71a88411c (patch) | |
tree | f2ab1a1105705856c5cdfc71bcf3f7b5f897d30d /arch/arm/mach-footbridge/netwinder-leds.c | |
parent | a1741e7fcbc19a67520115df480ab17012cc3d0b (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.c | 10 |
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 @@ | |||
31 | static char led_state; | 31 | static char led_state; |
32 | static char hw_led_state; | 32 | static char hw_led_state; |
33 | 33 | ||
34 | static DEFINE_SPINLOCK(leds_lock); | 34 | static DEFINE_RAW_SPINLOCK(leds_lock); |
35 | 35 | ||
36 | static void netwinder_leds_event(led_event_t evt) | 36 | static 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 | ||