From 85c93fa95b8fa8dabc6d14c77eb9a9c2e9753ecc Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Tue, 8 May 2007 00:36:23 -0700 Subject: [PATCH] Char: cyclades, clear interrupts before releasing Without this patch, the driver sometimes causes "IRQXX: Nobody cares". Fix it by turning off irqs when releasing. Signed-off-by: Jiri Slaby Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/char/cyclades.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/char/cyclades.c b/drivers/char/cyclades.c index 4434c13472..353e888295 100644 --- a/drivers/char/cyclades.c +++ b/drivers/char/cyclades.c @@ -5341,6 +5341,17 @@ static void __devexit cy_pci_release(struct pci_dev *pdev) struct cyclades_card *cinfo = pci_get_drvdata(pdev); unsigned int i; + /* non-Z with old PLX */ + if (cinfo->num_chips != -1 && (readb(cinfo->base_addr + CyPLX_VER) & + 0x0f) == PLX_9050) + cy_writeb(cinfo->ctl_addr + 0x4c, 0); + else +#ifndef CONFIG_CYZ_INTR + if (cinfo->num_chips != -1) +#endif + cy_writew(cinfo->ctl_addr + 0x68, + readw(cinfo->ctl_addr + 0x68) & ~0x0900); + pci_iounmap(pdev, cinfo->base_addr); if (cinfo->ctl_addr) pci_iounmap(pdev, cinfo->ctl_addr); @@ -5560,6 +5571,8 @@ static void __exit cy_cleanup_module(void) cy_pci_release(cy_card[i].pdev); continue; } + /* clear interrupt */ + cy_writeb(cy_card[i].base_addr + Cy_ClrIntr, 0); iounmap(cy_card[i].base_addr); if (cy_card[i].ctl_addr) iounmap(cy_card[i].ctl_addr); -- 2.39.5