linux-kernel - [PATCH 11/12] isdn: hisax: Fix pnp_irq's error checking for setup_sedlbauer

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Message-Id: <35eb61ef566cb62e6ca555f5167c0bf3655c9eed.1510805781.git.arvind.yadav.cs@gmail.com>
Date:   Thu, 16 Nov 2017 09:57:28 +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 11/12] isdn: hisax: Fix pnp_irq's error checking for setup_sedlbauer_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@...il.com>
---
 drivers/isdn/hisax/sedlbauer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/isdn/hisax/sedlbauer.c b/drivers/isdn/hisax/sedlbauer.c
index f16a47b..c0b97b8 100644
--- a/drivers/isdn/hisax/sedlbauer.c
+++ b/drivers/isdn/hisax/sedlbauer.c
@@ -558,7 +558,7 @@ static int setup_sedlbauer_isapnp(struct IsdnCard *card, int *bytecnt)
 				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 "Sedlbauer PnP:some resources are missing %ld/%lx\n",
 					       card->para[0], card->para[1]);
 					pnp_disable_dev(pnp_d);
-- 
1.9.1