HID: intel-ish-hid: pci-ish: Remove unused variable 'ret'

Fixes the following W=1 kernel build warning(s):

 drivers/hid/intel-ish-hid/ipc/pci-ish.c: In function ‘ish_resume_handler’:
 drivers/hid/intel-ish-hid/ipc/pci-ish.c:264:6: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable]

Cc: Srinivas Pandruvada <[email protected]>
Cc: Jiri Kosina <[email protected]>
Cc: Benjamin Tissoires <[email protected]>
Cc: Zhang Lixu <[email protected]>
Cc: Kai-Heng Feng <[email protected]>
Cc: Daniel Drubin <[email protected]>
Cc: [email protected]
Signed-off-by: Lee Jones <[email protected]>
Acked-by: Srinivas Pandruvada <[email protected]>
Signed-off-by: Benjamin Tissoires <[email protected]>

Author: Lee Jones

drivers/hid/intel-ish-hid/ipc/pci-ish.c

@@ -261,7 +261,6 @@ static void __maybe_unused ish_resume_handler(struct work_struct *work)
 	struct pci_dev *pdev = to_pci_dev(ish_resume_device);
 	struct ishtp_device *dev = pci_get_drvdata(pdev);
 	uint32_t fwsts = dev->ops->get_fw_status(dev);
-	int ret;
 
 	if (ish_should_leave_d0i3(pdev) && !dev->suspend_flag
 			&& IPC_IS_ISH_ILUP(fwsts)) {
@@ -273,7 +272,7 @@ static void __maybe_unused ish_resume_handler(struct work_struct *work)
 
 		/* Waiting to get resume response */
 		if (dev->resume_flag)
-			ret = wait_event_interruptible_timeout(dev->resume_wait,
+			wait_event_interruptible_timeout(dev->resume_wait,
 				!dev->resume_flag,
 				msecs_to_jiffies(WAIT_FOR_RESUME_ACK_MS));