usb: usbtmc: Fix timeout value in get_stb

commit 342e495 upstream.

wait_event_interruptible_timeout requires a timeout argument
in units of jiffies. It was being called in usbtmc_get_stb
with the usb timeout value which is in units of milliseconds.

Pass the timeout argument converted to jiffies.

Fixes: 048c6d8 ("usb: usbtmc: Add ioctls to set/get usb timeout")
Cc: stable@vger.kernel.org
Signed-off-by: Dave Penkler <dpenkler@gmail.com>
Link: https://lore.kernel.org/r/20250521121656.18174-4-dpenkler@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Author: dpenkler

drivers/usb/class/usbtmc.c

@@ -483,6 +483,7 @@ static int usbtmc_get_stb(struct usbtmc_file_data *file_data, __u8 *stb)
 	u8 tag;
 	int rv;
 	long wait_rv;
+	unsigned long expire;
 
 	dev_dbg(dev, "Enter ioctl_read_stb iin_ep_present: %d\n",
 		data->iin_ep_present);
@@ -512,10 +513,11 @@ static int usbtmc_get_stb(struct usbtmc_file_data *file_data, __u8 *stb)
 	}
 
 	if (data->iin_ep_present) {
+		expire = msecs_to_jiffies(file_data->timeout);
 		wait_rv = wait_event_interruptible_timeout(
 			data->waitq,
 			atomic_read(&data->iin_data_valid) != 0,
-			file_data->timeout);
+			expire);
 		if (wait_rv < 0) {
 			dev_dbg(dev, "wait interrupted %ld\n", wait_rv);
 			rv = wait_rv;