This is a note to let you know that I've just added the patch titled
usb: gadget: atmel_usba: fix crashed during stopping when DEBUG is enabled
to the 3.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
usb-gadget-atmel_usba-fix-crashed-during-stopping-when-debug-is-enabled.patch
and it can be found in the queue-3.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From d8eb6c653ef6b323d630de3c5685478469e248bc Mon Sep 17 00:00:00 2001
From: Gregory CLEMENT <gregory.clement@xxxxxxxxxxxxxxxxxx>
Date: Mon, 3 Mar 2014 17:48:34 +0100
Subject: usb: gadget: atmel_usba: fix crashed during stopping when DEBUG is enabled
From: Gregory CLEMENT <gregory.clement@xxxxxxxxxxxxxxxxxx>
commit d8eb6c653ef6b323d630de3c5685478469e248bc upstream.
commit 511f3c5 (usb: gadget: udc-core: fix a regression during gadget driver
unbinding) introduced a crash when DEBUG is enabled.
The debug trace in the atmel_usba_stop function made the assumption that the
driver pointer passed in parameter was not NULL, but since the commit above,
such assumption was no longer always true.
This commit now uses the driver pointer stored in udc which fixes this
issue.
[ balbi@xxxxxx : improved commit log a bit ]
Acked-by: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Gregory CLEMENT <gregory.clement@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Felipe Balbi <balbi@xxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/gadget/atmel_usba_udc.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
--- a/drivers/usb/gadget/atmel_usba_udc.c
+++ b/drivers/usb/gadget/atmel_usba_udc.c
@@ -1827,12 +1827,12 @@ static int atmel_usba_stop(struct usb_ga
toggle_bias(0);
usba_writel(udc, CTRL, USBA_DISABLE_MASK);
- udc->driver = NULL;
-
clk_disable_unprepare(udc->hclk);
clk_disable_unprepare(udc->pclk);
- DBG(DBG_GADGET, "unregistered driver `%s'\n", driver->driver.name);
+ DBG(DBG_GADGET, "unregistered driver `%s'\n", udc->driver->driver.name);
+
+ udc->driver = NULL;
return 0;
}
Patches currently in stable-queue which might be from gregory.clement@xxxxxxxxxxxxxxxxxx are
queue-3.14/arm-mvebu-ensure-the-mdio-node-has-a-clock-reference-on-armada-370-xp.patch
queue-3.14/usb-gadget-atmel_usba-fix-crashed-during-stopping-when-debug-is-enabled.patch
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