Prev: [PATCH 09/10 v2] oss: msnd: check request_region() return value
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From: Kulikov Vasiliy on 29 Jul 2010 06:50
request_region() may fail, if so return -EBUSY.

Signed-off-by: Kulikov Vasiliy <segooon(a)gmail.com>
---
arch/arm/mach-shark/leds.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/arch/arm/mach-shark/leds.c b/arch/arm/mach-shark/leds.c
index c9e32de..cb1a8f2 100644
--- a/arch/arm/mach-shark/leds.c
+++ b/arch/arm/mach-shark/leds.c
@@ -155,7 +155,8 @@ static int __init leds_init(void)
leds_event = sequoia_leds_event;

/* Make LEDs independent of power-state */
- request_region(0x24,4,"sequoia");
+ if (request_region(0x24, 4, "sequoia") == NULL)
+ return -EBUSY;
temp = sequoia_read(0x09);
temp |= 1<<10;
sequoia_write(temp,0x09);
--
1.7.0.4

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