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 my usb git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git
in the usb-linus branch.
The patch will show up in the next release of the linux-next tree
(usually sometime within the next 24 hours during the week.)
The patch will hopefully also be merged in Linus's tree for the
next -rc kernel release.
If you have any questions about this process, please let me know.
>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
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().
Cc: <stable@xxxxxxxxxxxxxxx> # v3.7 v3.8
Signed-off-by: Felipe Balbi <balbi@xxxxxx>
---
drivers/usb/dwc3/core.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 9999094..ffa6b00 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -583,6 +583,7 @@ static int dwc3_remove(struct platform_device *pdev)
break;
}
+ dwc3_free_event_buffers(dwc);
dwc3_core_exit(dwc);
return 0;
--
1.8.1.2.434.g9a6c84e.dirty
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