linux-kernel - [PATCH 3.17 221/319] usb: chipidea: Fix oops when removing the ci

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Message-Id: <20141112011029.337936450@linuxfoundation.org>
Date:	Wed, 12 Nov 2014 10:15:59 +0900
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org,
	Torsten Fleischer <to-fleischer@...nline.de>,
	Peter Chen <peter.chen@...escale.com>
Subject: [PATCH 3.17 221/319] usb: chipidea: Fix oops when removing the ci_hdrc module

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

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

From: Torsten Fleischer <to-fleischer@...nline.de>

commit 9680b60ed79edaf52f84b65cbb20859bbb26cb68 upstream.

The call of 'kfree(ci->hw_bank.regmap)' in ci_hdrc_remove() sometimes causes
a kernel oops when removing the ci_hdrc module.

Since there is no separate memory allocated for the ci->hw_bank.regmap array,
there is no need to free it.

Signed-off-by: Torsten Fleischer <to-fleischer@...nline.de>
Signed-off-by: Peter Chen <peter.chen@...escale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/usb/chipidea/core.c |    1 -
 1 file changed, 1 deletion(-)

--- a/drivers/usb/chipidea/core.c
+++ b/drivers/usb/chipidea/core.c
@@ -732,7 +732,6 @@ static int ci_hdrc_remove(struct platfor
 	ci_role_destroy(ci);
 	ci_hdrc_enter_lpm(ci, true);
 	usb_phy_shutdown(ci->transceiver);
-	kfree(ci->hw_bank.regmap);
 
 	return 0;
 }


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