Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
From:   Arvind Yadav <arvind.yadav.cs@gmail.com>
To:     isdn@linux-pingi.de, davem@davemloft.net,
        stephen@networkplumber.org, johannes.berg@intel.com
Cc:     linux-kernel@vger.kernel.org, netdev@vger.kernel.org
Subject: [PATCH 07/12] isdn: hisax: Handle return value of pnp_irq and pnp_port_start
Date:   Thu, 16 Nov 2017 09:57:24 +0530
Message-Id: <c9a84794d2adfd3c6ec25bd60f18b4911da0177c.1510805781.git.arvind.yadav.cs@gmail.com>
In-Reply-To: <cover.1510805781.git.arvind.yadav.cs@gmail.com>
References: <cover.1510805781.git.arvind.yadav.cs@gmail.com>
In-Reply-To: <cover.1510805781.git.arvind.yadav.cs@gmail.com>
References: <cover.1510805781.git.arvind.yadav.cs@gmail.com>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

pnp_irq() and pnp_port_start() can fail here and we must check
its return value.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
---
 drivers/isdn/hisax/hisax_fcpcipnp.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/isdn/hisax/hisax_fcpcipnp.c b/drivers/isdn/hisax/hisax_fcpcipnp.c
index e4f7573..7a7137d 100644
--- a/drivers/isdn/hisax/hisax_fcpcipnp.c
+++ b/drivers/isdn/hisax/hisax_fcpcipnp.c
@@ -940,6 +940,8 @@ static int fcpnp_probe(struct pnp_dev *pdev, const struct pnp_device_id *dev_id)
 	}
 	adapter->io = pnp_port_start(pdev, 0);
 	adapter->irq = pnp_irq(pdev, 0);
+	if (!adapter->io || adapter->irq == -1)
+		goto err_free;
 
 	printk(KERN_INFO "hisax_fcpcipnp: found adapter %s at IO %#x irq %d\n",
 	       (char *) dev_id->driver_data, adapter->io, adapter->irq);
-- 
1.9.1


From 1584196202073191743@xxx Thu Nov 16 04:40:30 +0000 2017
X-GM-THRID: 1584196202073191743
X-Gmail-Labels: Inbox,Category Forums,HistoricalUnread