linux-kernel - [PATCH] usb: move assignment out of if condition

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Date:	Tue, 30 Jun 2015 09:02:22 -0400
From:	Kris Borer <kborer@...il.com>
To:	gregkh@...uxfoundation.org
Cc:	stern@...land.harvard.edu, balbi@...com, pmladek@...e.cz,
	antoine.tenart@...e-electrons.com, hdegoede@...hat.com,
	sergei.shtylyov@...entembedded.com, rafael.j.wysocki@...el.com,
	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
	Kris Borer <kborer@...il.com>
Subject: [PATCH] usb: move assignment out of if condition

Fix four occurrences of the checkpatch.pl error:

ERROR: do not use assignment in if condition

Signed-off-by: Kris Borer <kborer@...il.com>
---
 drivers/usb/core/hcd.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index be5b207..e268c45 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -2683,12 +2683,13 @@ int usb_add_hcd(struct usb_hcd *hcd,
 	 * bottom up so that hcds can customize the root hubs before hub_wq
 	 * starts talking to them.  (Note, bus id is assigned early too.)
 	 */
-	if ((retval = hcd_buffer_create(hcd)) != 0) {
+	retval = hcd_buffer_create(hcd);
+	if (retval != 0) {
 		dev_dbg(hcd->self.controller, "pool alloc failed\n");
 		goto err_create_buf;
 	}
-
-	if ((retval = usb_register_bus(&hcd->self)) < 0)
+	retval = usb_register_bus(&hcd->self);
+	if (retval < 0)
 		goto err_register_bus;
 
 	rhdev = usb_alloc_dev(NULL, &hcd->self, 0);
@@ -2734,7 +2735,8 @@ int usb_add_hcd(struct usb_hcd *hcd,
 	/* "reset" is misnamed; its role is now one-time init. the controller
 	 * should already have been reset (and boot firmware kicked off etc).
 	 */
-	if (hcd->driver->reset && (retval = hcd->driver->reset(hcd)) < 0) {
+	retval = hcd->driver->reset(hcd);
+	if (hcd->driver->reset && retval < 0) {
 		dev_err(hcd->self.controller, "can't setup: %d\n", retval);
 		goto err_hcd_driver_setup;
 	}
@@ -2766,7 +2768,8 @@ int usb_add_hcd(struct usb_hcd *hcd,
 	}
 
 	/* starting here, usbcore will pay attention to this root hub */
-	if ((retval = register_root_hub(hcd)) != 0)
+	retval = register_root_hub(hcd);
+	if (retval != 0)
 		goto err_register_root_hub;
 
 	retval = sysfs_create_group(&rhdev->dev.kobj, &usb_bus_attr_group);
-- 
1.9.1

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