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| author | roel kluin <roel.kluin@gmail.com> | 2009-09-01 08:24:53 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-09-03 08:45:54 +0200 |
| commit | ab08999d6029bb2c79c16be5405d63d2bedbdfea (patch) | |
| tree | f2269b6e55119a582e8791434a5ac63b49af6e27 | |
| parent | tcp: replace hard coded GFP_KERNEL with sk_allocation (diff) | |
| download | linux-ab08999d6029bb2c79c16be5405d63d2bedbdfea.tar.xz linux-ab08999d6029bb2c79c16be5405d63d2bedbdfea.zip | |
WARNING: some request_irq() failures ignored in el2_open()
Request_irq() may fail in different ways, handle accordingly.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/3c503.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/net/3c503.c b/drivers/net/3c503.c index 134638a9759f..81c148a59adf 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))) { |