This is a note to let you know that I've just added the patch titled
usb: dwc3: core: don't forget to free coherent memory
to the 3.8-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-dwc3-core-don-t-forget-to-free-coherent-memory.patch
and it can be found in the queue-3.8 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From d9b4330adec006c2e8907bdcacd9dcc0e8874d18 Mon Sep 17 00:00:00 2001
From: Felipe Balbi <balbi@xxxxxx>
Date: Fri, 8 Feb 2013 15:14:16 +0200
Subject: usb: dwc3: core: don't forget to free coherent memory
From: Felipe Balbi <balbi@xxxxxx>
commit d9b4330adec006c2e8907bdcacd9dcc0e8874d18 upstream.
commit 3921426 (usb: dwc3: core: move
event buffer allocation out of
dwc3_core_init()) introduced a memory leak
of the coherent memory we use as event
buffers on dwc3 driver.
If the driver is compiled as a dynamically
loadable module and use constantly loads
and unloads the driver, we will continue
to leak the coherent memory allocated during
->probe() because dwc3_free_event_buffers()
is never called during ->remove().
Signed-off-by: Felipe Balbi <balbi@xxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/dwc3/core.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -575,6 +575,7 @@ static int dwc3_remove(struct platform_d
break;
}
+ dwc3_free_event_buffers(dwc);
dwc3_core_exit(dwc);
return 0;
Patches currently in stable-queue which might be from balbi@xxxxxx are
queue-3.8/usb-dwc3-core-don-t-forget-to-free-coherent-memory.patch
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