netdev - [PATCH 05/12] isdn: hisax: Fix pnp_irq's error checking for setup

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Date:   Thu, 16 Nov 2017 09:57:22 +0530
From:   Arvind Yadav <arvind.yadav.cs@...il.com>
To:     isdn@...ux-pingi.de, davem@...emloft.net,
        stephen@...workplumber.org, johannes.berg@...el.com
Cc:     linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: [PATCH 05/12] isdn: hisax: Fix pnp_irq's error checking for setup_hfcsx

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@...il.com>
---
 drivers/isdn/hisax/hfc_sx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/isdn/hisax/hfc_sx.c b/drivers/isdn/hisax/hfc_sx.c
index 3aef8e1..99f5a93 100644
--- a/drivers/isdn/hisax/hfc_sx.c
+++ b/drivers/isdn/hisax/hfc_sx.c
@@ -1422,7 +1422,7 @@ int setup_hfcsx(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);
-- 
1.9.1