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ISDN: Add check for return value of pnp_activate_dev()

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pnp_activate_dev() return value needs to be checked to make sure that
following calls calls to the PNP functions do work correctly.
Fix for report #44491 on bugzilla.kernel.org.

Signed-off-by: Karsten Keil <kkeil@linux-pingi.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Karsten Keil 2012-07-12 07:01:10 +00:00 committed by David S. Miller
parent 7be7e93268
commit 5b999fd04a
1 changed files with 5 additions and 0 deletions
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5
drivers/isdn/hisax/isurf.c
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@ -231,6 +231,11 @@ setup_isurf(struct IsdnCard *card)
}
pnp_disable_dev(pnp_d);
err = pnp_activate_dev(pnp_d);
if (err < 0) {
pr_warn("%s: pnp_activate_dev ret=%d\n",
__func__, err);
return 0;
}
cs->hw.isurf.reset = pnp_port_start(pnp_d, 0);
cs->hw.isurf.phymem = pnp_mem_start(pnp_d, 1);
cs->irq = pnp_irq(pnp_d, 0);