From ab08999d6029bb2c79c16be5405d63d2bedbdfea Mon Sep 17 00:00:00 2001 From: roel kluin Date: Tue, 1 Sep 2009 06:24:53 +0000 Subject: [PATCH] WARNING: some request_irq() failures ignored in el2_open() Request_irq() may fail in different ways, handle accordingly. Signed-off-by: Roel Kluin Signed-off-by: David S. Miller --- drivers/net/3c503.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/net/3c503.c b/drivers/net/3c503.c index 134638a9759..81c148a59ad 100644 --- a/drivers/net/3c503.c +++ b/drivers/net/3c503.c @@ -383,7 +383,7 @@ out: static int el2_open(struct net_device *dev) { - int retval = -EAGAIN; + int retval; if (dev->irq < 2) { int irqlist[] = {5, 9, 3, 4, 0}; @@ -391,7 +391,8 @@ el2_open(struct net_device *dev) outb(EGACFR_NORM, E33G_GACFR); /* Enable RAM and interrupts. */ do { - if (request_irq (*irqp, NULL, 0, "bogus", dev) != -EBUSY) { + retval = request_irq(*irqp, NULL, 0, "bogus", dev); + if (retval >= 0) { /* Twinkle the interrupt, and check if it's seen. */ unsigned long cookie = probe_irq_on(); outb_p(0x04 << ((*irqp == 9) ? 2 : *irqp), E33G_IDCFR); @@ -400,11 +401,14 @@ el2_open(struct net_device *dev) && ((retval = request_irq(dev->irq = *irqp, eip_interrupt, 0, dev->name, dev)) == 0)) break; + } else { + if (retval != -EBUSY) + return reval; } } while (*++irqp); if (*irqp == 0) { outb(EGACFR_IRQOFF, E33G_GACFR); /* disable interrupts. */ - return retval; + return -EAGAIN; } } else { if ((retval = request_irq(dev->irq, eip_interrupt, 0, dev->name, dev))) { -- 2.20.1