[PATCH] vme: vme_ca91cx42.c: fix to pass correct device identity to free_irq()

From: Wei Yongjun
Date: Mon Aug 26 2013 - 00:04:14 EST


From: Wei Yongjun <yongjun_wei@xxxxxxxxxxxxxxxxx>

free_irq() expects the same device identity that was passed to
corresponding request_irq(), otherwise the IRQ is not freed.

Signed-off-by: Wei Yongjun <yongjun_wei@xxxxxxxxxxxxxxxxx>
---
drivers/vme/bridges/vme_ca91cx42.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/vme/bridges/vme_ca91cx42.c b/drivers/vme/bridges/vme_ca91cx42.c
index 64bfea3..f24e234 100644
--- a/drivers/vme/bridges/vme_ca91cx42.c
+++ b/drivers/vme/bridges/vme_ca91cx42.c
@@ -243,6 +243,8 @@ static int ca91cx42_irq_init(struct vme_bridge *ca91cx42_bridge)
static void ca91cx42_irq_exit(struct ca91cx42_driver *bridge,
struct pci_dev *pdev)
{
+ struct vme_bridge *ca91cx42_bridge;
+
/* Disable interrupts from PCI to VME */
iowrite32(0, bridge->base + VINT_EN);

@@ -251,7 +253,9 @@ static void ca91cx42_irq_exit(struct ca91cx42_driver *bridge,
/* Clear Any Pending PCI Interrupts */
iowrite32(0x00FFFFFF, bridge->base + LINT_STAT);

- free_irq(pdev->irq, pdev);
+ ca91cx42_bridge = container_of((void *)bridge, struct vme_bridge,
+ driver_priv);
+ free_irq(pdev->irq, ca91cx42_bridge);
}

static int ca91cx42_iack_received(struct ca91cx42_driver *bridge, int level)

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