When implementing the test_iqr() method, I forgot that this driver is not an
ordinary PCI driver and also needs to support VLB variant of the chip. Moreover,
'hwif->dev' should be NULL, potentially causing oops in pci_read_config_byte().
Signed-off-by: Sergei Shtylyov <sshtylyov@xxxxxxxxxxxxx>
---
The patch is atop of ide-2.6.git tree...
drivers/ide/cmd640.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
Index: ide-2.6/drivers/ide/cmd640.c
===================================================================
--- ide-2.6.orig/drivers/ide/cmd640.c
+++ ide-2.6/drivers/ide/cmd640.c
@@ -633,12 +633,10 @@ static void __init cmd640_init_dev(ide_d
static int cmd640_test_irq(ide_hwif_t *hwif)
{
- struct pci_dev *dev = to_pci_dev(hwif->dev);
int irq_reg = hwif->channel ? ARTTIM23 : CFR;
- u8 irq_stat, irq_mask = hwif->channel ? ARTTIM23_IDE23INTR :
+ u8 irq_mask = hwif->channel ? ARTTIM23_IDE23INTR :
CFR_IDE01INTR;
-
- pci_read_config_byte(dev, irq_reg, &irq_stat);
+ u8 irq_stat = get_cmd640_reg(irq_reg);
return (irq_stat & irq_mask) ? 1 : 0;
}
--
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