linux-kernel - [PATCH v1 1/3] HID: intel-ish-hid: Drop if block with an always false condition

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Message-Id: <20210206151348.14530-1-uwe@kleine-koenig.org>
Date:   Sat,  6 Feb 2021 16:13:46 +0100
From:   Uwe Kleine-König <uwe@...ine-koenig.org>
To:     Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
        Jiri Kosina <jikos@...nel.org>,
        Benjamin Tissoires <benjamin.tissoires@...hat.com>,
        Enric Balletbo i Serra <enric.balletbo@...labora.com>,
        Guenter Roeck <groeck@...omium.org>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-input@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v1 1/3] HID: intel-ish-hid: Drop if block with an always false condition

A remove callback is only ever called for a bound device. So there is no
need to check for device or driver being NULL.

Signed-off-by: Uwe Kleine-König <uwe@...ine-koenig.org>
---
 drivers/hid/intel-ish-hid/ishtp/bus.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/hid/intel-ish-hid/ishtp/bus.c b/drivers/hid/intel-ish-hid/ishtp/bus.c
index bba29cd36d29..ccd54f244503 100644
--- a/drivers/hid/intel-ish-hid/ishtp/bus.c
+++ b/drivers/hid/intel-ish-hid/ishtp/bus.c
@@ -257,17 +257,13 @@ static int ishtp_cl_bus_match(struct device *dev, struct device_driver *drv)
 static int ishtp_cl_device_remove(struct device *dev)
 {
 	struct ishtp_cl_device *device = to_ishtp_cl_device(dev);
-	struct ishtp_cl_driver *driver;
-
-	if (!device || !dev->driver)
-		return 0;
+	struct ishtp_cl_driver *driver = to_ishtp_cl_driver(dev->driver);
 
 	if (device->event_cb) {
 		device->event_cb = NULL;
 		cancel_work_sync(&device->event_work);
 	}
 
-	driver = to_ishtp_cl_driver(dev->driver);
 	if (!driver->remove) {
 		dev->driver = NULL;
 

base-commit: 5c8fe583cce542aa0b84adc939ce85293de36e5e
-- 
2.29.2