From 93f599f279ab56b1761c76e53f9753b26aeefe9e Mon Sep 17 00:00:00 2001 From: Robert Baldyga Date: Thu, 21 Nov 2013 13:49:17 +0100 Subject: [PATCH] usb: gadget: s3c-hsotg: fix spinlock locking This patch adds missing spinlock locking in s3c_hsotg_complete_setup function, and unlocking for gadget setup call. Signed-off-by: Robert Baldyga Signed-off-by: Kyungmin Park Signed-off-by: Felipe Balbi --- drivers/usb/gadget/s3c-hsotg.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c index 9875d9c..56fad76 100644 --- a/drivers/usb/gadget/s3c-hsotg.c +++ b/drivers/usb/gadget/s3c-hsotg.c @@ -1245,7 +1245,9 @@ static void s3c_hsotg_process_control(struct s3c_hsotg *hsotg, /* as a fallback, try delivering it to the driver to deal with */ if (ret == 0 && hsotg->driver) { + spin_unlock(&hsotg->lock); ret = hsotg->driver->setup(&hsotg->gadget, ctrl); + spin_lock(&hsotg->lock); if (ret < 0) dev_dbg(hsotg->dev, "driver->setup() ret %d\n", ret); } @@ -1308,10 +1310,12 @@ static void s3c_hsotg_complete_setup(struct usb_ep *ep, return; } + spin_lock(&hsotg->lock); if (req->actual == 0) s3c_hsotg_enqueue_setup(hsotg); else s3c_hsotg_process_control(hsotg, req->buf); + spin_unlock(&hsotg->lock); } /** -- 2.7.4