Commit 2a540edf authored Aug 26, 2012 by Oliver Neukum Committed by Felipe Balbi Aug 31, 2012

usb: dwc3: core: memory ordering fix in close



As a bitmap is used for free/used. As a device freed
all memory operations must be scheduled before the bitmap
is manipulated.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>

parent c6f83f38

drivers/usb/dwc3/core.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -99,6 +99,7 @@ void dwc3_put_device_id(int id)

		ret = test_bit(id, dwc3_devs);
		WARN(!ret, "dwc3: ID %d not in use\n", id);
		smp_mb__before_clear_bit();
		clear_bit(id, dwc3_devs);
		}
		EXPORT_SYMBOL_GPL(dwc3_put_device_id);