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

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/elsa.c b/drivers/isdn/hisax/elsa.c
index b21c05820f4496cd6ea84f18733fae0567c519ec..0754c074379056ceeaa5cd07efb9e39dc81d1f6e 100644 (file)
--- a/drivers/isdn/hisax/elsa.c
+++ b/drivers/isdn/hisax/elsa.c
@@ -945,7 +945,7 @@ static int setup_elsa_isapnp(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 "Elsa PnP:some resources are missing %ld/%lx\n",
                                                       card->para[0], card->para[1]);
                                                pnp_disable_dev(pnp_d);