From 00b9a1f97dbdfbdc1d268bf8d878937b150ce2d4 Mon Sep 17 00:00:00 2001 From: Marc Kleine-Budde Date: Sat, 30 Mar 2013 12:53:58 +0200 Subject: [PATCH] usb: chipidea: usbmisc: fix a potential race condition This fixes a potential race condition where the ci13xxx_imx glue code could be fast enough to call one of the usbmisc_ops before he got a valid value on the static usbmisc pointer. To fix that we first set usbmisc, then call usbmisc_set_ops(). Signed-off-by: Marc Kleine-Budde Signed-off-by: Michael Grzeschik Signed-off-by: Alexander Shishkin Signed-off-by: Greg Kroah-Hartman --- drivers/usb/chipidea/usbmisc_imx.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/usb/chipidea/usbmisc_imx.c b/drivers/usb/chipidea/usbmisc_imx.c index fd4d3392125f..d77e712c6c2d 100644 --- a/drivers/usb/chipidea/usbmisc_imx.c +++ b/drivers/usb/chipidea/usbmisc_imx.c @@ -116,14 +116,14 @@ static int usbmisc_imx_probe(struct platform_device *pdev) return ret; } + usbmisc = data; ret = usbmisc_set_ops(&imx6q_usbmisc_ops); if (ret) { + usbmisc = NULL; clk_disable_unprepare(data->clk); return ret; } - usbmisc = data; - return 0; } -- GitLab