From: Arvind Yadav <arvind.yadav.cs@gmail.com>
Date: Thu, 16 Nov 2017 04:27:26 +0000 (+0530)
Subject: isdn: hisax: Fix pnp_irq's error checking for setup_ix1micro
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=203d2027a1e95e7d9585d734bdeaac6057058357;p=openwrt%2Fstaging%2Fblogic.git

isdn: hisax: Fix pnp_irq's error checking for setup_ix1micro

The pnp_irq() function returns -1 if an error occurs.
pnp_irq() error checking for zero is not correct.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/isdn/hisax/ix1_micro.c b/drivers/isdn/hisax/ix1_micro.c
index 7ae39f5e865d..bfb79f3f0a49 100644
--- a/drivers/isdn/hisax/ix1_micro.c
+++ b/drivers/isdn/hisax/ix1_micro.c
@@ -256,7 +256,7 @@ int setup_ix1micro(struct IsdnCard *card)
 					}
 					card->para[1] = pnp_port_start(pnp_d, 0);
 					card->para[0] = pnp_irq(pnp_d, 0);
-					if (!card->para[0] || !card->para[1]) {
+					if (card->para[0] == -1 || !card->para[1]) {
 						printk(KERN_ERR "ITK PnP:some resources are missing %ld/%lx\n",
 						       card->para[0], card->para[1]);
 						pnp_disable_dev(pnp_d);