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rtc: rtc-sh: fix for period rtc interrupts. 

When testing the per second interrupt support (RTC_UIE_ON/RTC_UIE_OFF)
of the new RTC system it would die in sh_rtc_interrupt due to a null
ptr dereference. The following gets it working correctly.

Signed-off-by: Jamie Lenehan <lenehan@twibble.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Jamie Lenehan 2006-12-07 17:23:50 +09:00 committed by Paul Mundt
parent 417d6b9edb
commit 31ccb081ec
1 changed files with 22 additions and 21 deletions
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43
drivers/rtc/rtc-sh.c
View File

@ -21,7 +21,7 @@
#include <linux/seq_file.h>
#include <linux/interrupt.h>
#include <linux/spinlock.h>
#include <asm/io.h>
#include <linux/io.h>
#ifdef CONFIG_CPU_SH3
#define rtc_reg_size sizeof(u16)
@ -33,22 +33,22 @@
#define RTC_REG(r) ((r) * rtc_reg_size)
#define R64CNT RTC_REG(0)
#define RSECCNT RTC_REG(1)
#define RMINCNT RTC_REG(2)
#define RHRCNT RTC_REG(3)
#define RWKCNT RTC_REG(4)
#define RDAYCNT RTC_REG(5)
#define RMONCNT RTC_REG(6)
#define RYRCNT RTC_REG(7)
#define RSECAR RTC_REG(8)
#define RMINAR RTC_REG(9)
#define RHRAR RTC_REG(10)
#define RWKAR RTC_REG(11)
#define RDAYAR RTC_REG(12)
#define RMONAR RTC_REG(13)
#define RCR1 RTC_REG(14)
#define RCR2 RTC_REG(15)
#define R64CNT RTC_REG(0)
#define RSECCNT RTC_REG(1)
#define RMINCNT RTC_REG(2)
#define RHRCNT RTC_REG(3)
#define RWKCNT RTC_REG(4)
#define RDAYCNT RTC_REG(5)
#define RMONCNT RTC_REG(6)
#define RYRCNT RTC_REG(7)
#define RSECAR RTC_REG(8)
#define RMINAR RTC_REG(9)
#define RHRAR RTC_REG(10)
#define RWKAR RTC_REG(11)
#define RDAYAR RTC_REG(12)
#define RMONAR RTC_REG(13)
#define RCR1 RTC_REG(14)
#define RCR2 RTC_REG(15)
/* RCR1 Bits */
#define RCR1_CF 0x80 /* Carry Flag */
@ -73,9 +73,9 @@ struct sh_rtc {
spinlock_t lock;
};
static irqreturn_t sh_rtc_interrupt(int irq, void *id)
static irqreturn_t sh_rtc_interrupt(int irq, void *dev_id)
{
struct platform_device *pdev = id;
struct platform_device *pdev = to_platform_device(dev_id);
struct sh_rtc *rtc = platform_get_drvdata(pdev);
unsigned int tmp, events = 0;
@ -97,9 +97,10 @@ static irqreturn_t sh_rtc_interrupt(int irq, void *id)
return IRQ_HANDLED;
}
static irqreturn_t sh_rtc_periodic(int irq, void *id)
static irqreturn_t sh_rtc_periodic(int irq, void *dev_id)
{
struct sh_rtc *rtc = dev_get_drvdata(id);
struct platform_device *pdev = to_platform_device(dev_id);
struct sh_rtc *rtc = platform_get_drvdata(pdev);
spin_lock(&rtc->lock);