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

The pnp_irq() function returns -1 if an error occurs. pnp_irq() error checking for zero is not correct. Signed-off-by: Arvind Yadav <[email protected]> Signed-off-by: David S. Miller <[email protected]>
chewitt · Nov 16, 2017 · faa2eff · faa2eff
1 parent a6234b8
commit faa2eff
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/drivers/isdn/hisax/hfcscard.c b/drivers/isdn/hisax/hfcscard.c
@@ -196,7 +196,7 @@ int setup_hfcs(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 "HFC PnP:some resources are missing %ld/%lx\n",
 						       card->para[0], card->para[1]);
 						pnp_disable_dev(pnp_d);