linux-kernel - [085/264] Platform: Fix error path in samsung-laptop init

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Date:	Wed, 09 Nov 2011 13:32:12 -0800
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	alan@...rguk.ukuu.org.uk,
	David Herrmann <dh.herrmann@...glemail.com>,
	Matthew Garrett <mjg@...hat.com>
Subject: [085/264] Platform: Fix error path in samsung-laptop init

3.1-stable review patch.  If anyone has any objections, please let me know.

------------------

From: David Herrmann <dh.herrmann@...glemail.com>

commit a7ea19926ffba86f373f6050a106cd162dbb9a78 upstream.

samsung_init() should not return success if not all devices are initialized.
Otherwise, samsung_exit() will dereference sdev NULL pointers and others.

Signed-off-by: David Herrmann <dh.herrmann@...glemail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>
Signed-off-by: Matthew Garrett <mjg@...hat.com>

---
 drivers/platform/x86/samsung-laptop.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

--- a/drivers/platform/x86/samsung-laptop.c
+++ b/drivers/platform/x86/samsung-laptop.c
@@ -799,7 +799,7 @@ static int __init samsung_init(void)
 	sabi_iface = ioremap_nocache(ifaceP, 16);
 	if (!sabi_iface) {
 		pr_err("Can't remap %x\n", ifaceP);
-		goto exit;
+		goto error_no_signature;
 	}
 	if (debug) {
 		printk(KERN_DEBUG "ifaceP = 0x%08x\n", ifaceP);
@@ -851,7 +851,6 @@ static int __init samsung_init(void)
 	if (retval)
 		goto error_file_create;
 
-exit:
 	return 0;
 
 error_file_create:


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