From: Oliver Neukum <oliver@xxxxxxxxxx> 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@xxxxxxx> --- drivers/usb/dwc3/core.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index c34452a..dcc10ac 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -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); -- 1.7.7 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
