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| author | Jeff Garzik <jeff@garzik.org> | 2008-04-24 08:35:37 -0400 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2008-04-24 08:35:37 -0400 |
| commit | 0d626239ffe515a64a6b53c70896796f621c635c (patch) | |
| tree | 453091db20907cf7baef72ffe75792aeeb038150 | |
| parent | 807501475fce0ebe68baedf87f202c3e4ee0d12c (diff) | |
| download | linux-3.10-0d626239ffe515a64a6b53c70896796f621c635c.tar.gz linux-3.10-0d626239ffe515a64a6b53c70896796f621c635c.tar.bz2 linux-3.10-0d626239ffe515a64a6b53c70896796f621c635c.zip | |
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.c | 5 | ||||
| -rw-r--r-- | drivers/char/mwave/tp3780i.c | 14 |
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 { |