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authorJeff Garzik <jeff@garzik.org>2008-04-24 08:35:37 -0400
committerJeff Garzik <jgarzik@redhat.com>2008-04-24 08:35:37 -0400
commit0d626239ffe515a64a6b53c70896796f621c635c (patch)
tree453091db20907cf7baef72ffe75792aeeb038150
parent807501475fce0ebe68baedf87f202c3e4ee0d12c (diff)
downloadlinux-0d626239ffe515a64a6b53c70896796f621c635c.tar.gz
arm/mach-integrator/time.c, mwave: revert portions of recent irq cleanups
The recent irq cleanups for arch/arm/mach-integrator/time.c and drivers/char/mwave/tp3780i.c changed the request_irq() dev_id parameter, but neglected to change the matching free_irq() parameter, thus creating a bug upon irq de-registration. Given that the impetus for the changes is not yet accepted upstream, it is best to revert the irq cleanups. Mostly. A comment is added to time.c to reduce future confusion, of type that led to my time.c cleanup in the first place. Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
-rw-r--r--arch/arm/mach-integrator/time.c5
-rw-r--r--drivers/char/mwave/tp3780i.c14
2 files changed, 8 insertions, 11 deletions
diff --git a/arch/arm/mach-integrator/time.c b/arch/arm/mach-integrator/time.c
index 5235f64f235..8508a0db3ea 100644
--- a/arch/arm/mach-integrator/time.c
+++ b/arch/arm/mach-integrator/time.c
@@ -124,8 +124,11 @@ static int rtc_probe(struct amba_device *dev, void *id)
xtime.tv_sec = __raw_readl(rtc_base + RTC_DR);
+ /* note that 'dev' is merely used for irq disambiguation;
+ * it is not actually referenced in the irq handler
+ */
ret = request_irq(dev->irq[0], arm_rtc_interrupt, IRQF_DISABLED,
- "rtc-pl030", NULL);
+ "rtc-pl030", dev);
if (ret)
goto map_out;
diff --git a/drivers/char/mwave/tp3780i.c b/drivers/char/mwave/tp3780i.c
index 37fe80df0b9..f282976daaa 100644
--- a/drivers/char/mwave/tp3780i.c
+++ b/drivers/char/mwave/tp3780i.c
@@ -97,24 +97,20 @@ static void EnableSRAM(THINKPAD_BD_DATA * pBDData)
static irqreturn_t UartInterrupt(int irq, void *dev_id)
{
- int irqno = (int)(unsigned long) dev_id;
-
PRINTK_3(TRACE_TP3780I,
- "tp3780i::UartInterrupt entry irq %x dev_id %p\n", irqno, dev_id);
+ "tp3780i::UartInterrupt entry irq %x dev_id %p\n", irq, dev_id);
return IRQ_HANDLED;
}
static irqreturn_t DspInterrupt(int irq, void *dev_id)
{
- int irqno = (int)(unsigned long) dev_id;
-
pMWAVE_DEVICE_DATA pDrvData = &mwave_s_mdd;
DSP_3780I_CONFIG_SETTINGS *pSettings = &pDrvData->rBDData.rDspSettings;
unsigned short usDspBaseIO = pSettings->usDspBaseIO;
unsigned short usIPCSource = 0, usIsolationMask, usPCNum;
PRINTK_3(TRACE_TP3780I,
- "tp3780i::DspInterrupt entry irq %x dev_id %p\n", irqno, dev_id);
+ "tp3780i::DspInterrupt entry irq %x dev_id %p\n", irq, dev_id);
if (dsp3780I_GetIPCSource(usDspBaseIO, &usIPCSource) == 0) {
PRINTK_2(TRACE_TP3780I,
@@ -365,16 +361,14 @@ int tp3780I_EnableDSP(THINKPAD_BD_DATA * pBDData)
pSettings->bPllBypass = TP_CFG_PllBypass;
pSettings->usChipletEnable = TP_CFG_ChipletEnable;
- if (request_irq(pSettings->usUartIrq, &UartInterrupt, 0, "mwave_uart",
- (void *)(unsigned long) pSettings->usUartIrq)) {
+ if (request_irq(pSettings->usUartIrq, &UartInterrupt, 0, "mwave_uart", NULL)) {
PRINTK_ERROR(KERN_ERR_MWAVE "tp3780i::tp3780I_EnableDSP: Error: Could not get UART IRQ %x\n", pSettings->usUartIrq);
goto exit_cleanup;
} else { /* no conflict just release */
free_irq(pSettings->usUartIrq, NULL);
}
- if (request_irq(pSettings->usDspIrq, &DspInterrupt, 0, "mwave_3780i",
- (void *)(unsigned long) pSettings->usDspIrq)) {
+ if (request_irq(pSettings->usDspIrq, &DspInterrupt, 0, "mwave_3780i", NULL)) {
PRINTK_ERROR("tp3780i::tp3780I_EnableDSP: Error: Could not get 3780i IRQ %x\n", pSettings->usDspIrq);
goto exit_cleanup;
} else {