From fb76b099f86624d3c629cfab071aa2296f65b7bb Mon Sep 17 00:00:00 2001 From: Vojtech Pavlik Date: Mon, 5 Sep 2005 00:12:39 -0500 Subject: [PATCH] Input: iforce - use wait_event_interruptible_timeout The timeout while() loops in iforce-packets.c lack a set_current_state(TASK_INTERRUPTIBLE); call. The right solution is to replace them with wait_event_interruptible_timeout(). Reported-by: Nishanth Aravamudan Signed-off-by: Vojtech Pavlik Signed-off-by: Dmitry Torokhov --- .../input/joystick/iforce/iforce-packets.c | 32 ++++--------------- drivers/input/joystick/iforce/iforce-usb.c | 1 + 2 files changed, 8 insertions(+), 25 deletions(-) diff --git a/drivers/input/joystick/iforce/iforce-packets.c b/drivers/input/joystick/iforce/iforce-packets.c index 58728ebaaf8..e5a31e55d3e 100644 --- a/drivers/input/joystick/iforce/iforce-packets.c +++ b/drivers/input/joystick/iforce/iforce-packets.c @@ -249,9 +249,6 @@ void iforce_process_packet(struct iforce *iforce, u16 cmd, unsigned char *data, int iforce_get_id_packet(struct iforce *iforce, char *packet) { - DECLARE_WAITQUEUE(wait, current); - int timeout = HZ; /* 1 second */ - switch (iforce->bus) { case IFORCE_USB: @@ -260,22 +257,13 @@ int iforce_get_id_packet(struct iforce *iforce, char *packet) iforce->cr.bRequest = packet[0]; iforce->ctrl->dev = iforce->usbdev; - set_current_state(TASK_INTERRUPTIBLE); - add_wait_queue(&iforce->wait, &wait); - - if (usb_submit_urb(iforce->ctrl, GFP_ATOMIC)) { - set_current_state(TASK_RUNNING); - remove_wait_queue(&iforce->wait, &wait); + if (usb_submit_urb(iforce->ctrl, GFP_ATOMIC)) return -1; - } - while (timeout && iforce->ctrl->status == -EINPROGRESS) - timeout = schedule_timeout(timeout); + wait_event_interruptible_timeout(iforce->wait, + iforce->ctrl->status != -EINPROGRESS, HZ); - set_current_state(TASK_RUNNING); - remove_wait_queue(&iforce->wait, &wait); - - if (!timeout) { + if (iforce->ctrl->status != -EINPROGRESS) { usb_unlink_urb(iforce->ctrl); return -1; } @@ -290,16 +278,10 @@ int iforce_get_id_packet(struct iforce *iforce, char *packet) iforce->expect_packet = FF_CMD_QUERY; iforce_send_packet(iforce, FF_CMD_QUERY, packet); - set_current_state(TASK_INTERRUPTIBLE); - add_wait_queue(&iforce->wait, &wait); + wait_event_interruptible_timeout(iforce->wait, + !iforce->expect_packet, HZ); - while (timeout && iforce->expect_packet) - timeout = schedule_timeout(timeout); - - set_current_state(TASK_RUNNING); - remove_wait_queue(&iforce->wait, &wait); - - if (!timeout) { + if (iforce->expect_packet) { iforce->expect_packet = 0; return -1; } diff --git a/drivers/input/joystick/iforce/iforce-usb.c b/drivers/input/joystick/iforce/iforce-usb.c index 6369a24684f..58600f91eff 100644 --- a/drivers/input/joystick/iforce/iforce-usb.c +++ b/drivers/input/joystick/iforce/iforce-usb.c @@ -95,6 +95,7 @@ static void iforce_usb_irq(struct urb *urb, struct pt_regs *regs) goto exit; } + wake_up(&iforce->wait); iforce_process_packet(iforce, (iforce->data[0] << 8) | (urb->actual_length - 1), iforce->data + 1, regs);