linux-kernel - [PATCH] fix fm801_gp_probe() ignoring return value from pci_enable

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Message-ID: <Pine.LNX.4.64.0610130123270.29022@twin.jikos.cz>
Date:	Fri, 13 Oct 2006 01:27:35 +0200 (CEST)
From:	Jiri Kosina <jikos@...os.cz>
To:	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Andrew Morton <akpm@...l.org>
cc:	linux-kernel@...r.kernel.org, linux-input@...ey.karlin.mff.cuni.cz
Subject: [PATCH] fix fm801_gp_probe() ignoring return value from pci_enable_device()

[PATCH] fix fm801_gp_probe() ignoring return value from pci_enable_device()

Fix fm801_gp_probe() not handling pci_enable_device() return value 
correctly.

Signed-off-by: Jiri Kosina <jikos@...os.cz>

--- 

 drivers/input/gameport/fm801-gp.c |   23 ++++++++++++++++-------
 1 files changed, 16 insertions(+), 7 deletions(-)

diff --git a/drivers/input/gameport/fm801-gp.c b/drivers/input/gameport/fm801-gp.c
index 90de5af..5ac9e15 100644
--- a/drivers/input/gameport/fm801-gp.c
+++ b/drivers/input/gameport/fm801-gp.c
@@ -82,17 +82,22 @@ static int __devinit fm801_gp_probe(stru
 {
 	struct fm801_gp *gp;
 	struct gameport *port;
+	int err;
 
 	gp = kzalloc(sizeof(struct fm801_gp), GFP_KERNEL);
 	port = gameport_allocate_port();
 	if (!gp || !port) {
 		printk(KERN_ERR "fm801-gp: Memory allocation failed\n");
-		kfree(gp);
-		gameport_free_port(port);
-		return -ENOMEM;
+		err = -ENOMEM;
+		goto out_err;
 	}
 
-	pci_enable_device(pci);
+	err = pci_enable_device(pci);
+	if (err) {
+		printk(KERN_ERR "fm801: Cannot enable PCI device\n");
+		goto out_err;
+		
+	}
 
 	port->open = fm801_gp_open;
 #ifdef HAVE_COOKED
@@ -108,9 +113,8 @@ #endif
 	if (!gp->res_port) {
 		printk(KERN_DEBUG "fm801-gp: unable to grab region 0x%x-0x%x\n",
 			port->io, port->io + 0x0f);
-		gameport_free_port(port);
-		kfree(gp);
-		return -EBUSY;
+		err = -EBUSY;
+		goto out_err;
 	}
 
 	pci_set_drvdata(pci, gp);
@@ -119,6 +123,11 @@ #endif
 	gameport_register_port(port);
 
 	return 0;
+out_err:
+	gameport_free_port(port);
+	kfree(gp);
+
+	return err;
 }
 
 static void __devexit fm801_gp_remove(struct pci_dev *pci)

-- 
Jiri Kosina
-
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