linux-kernel - [PATCH 5/9] usb: fix empty-body warning in sysfs.c

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Message-Id: <20200418184111.13401-6-rdunlap@infradead.org>
Date:   Sat, 18 Apr 2020 11:41:07 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     linux-kernel@...r.kernel.org
Cc:     Randy Dunlap <rdunlap@...radead.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        linux-fsdevel@...r.kernel.org,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        linux-input@...r.kernel.org, Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>, alsa-devel@...a-project.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-usb@...r.kernel.org,
        "J. Bruce Fields" <bfields@...ldses.org>,
        Chuck Lever <chuck.lever@...cle.com>,
        linux-nfs@...r.kernel.org,
        Johannes Berg <johannes@...solutions.net>,
        Dan Williams <dan.j.williams@...el.com>,
        Vishal Verma <vishal.l.verma@...el.com>,
        Dave Jiang <dave.jiang@...el.com>, linux-nvdimm@...ts.01.org,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        linux-scsi@...r.kernel.org, target-devel@...r.kernel.org,
        Zzy Wysm <zzy@...wysm.com>
Subject: [PATCH 5/9] usb: fix empty-body warning in sysfs.c

Fix gcc empty-body warning when -Wextra is used:

../drivers/usb/core/sysfs.c: In function ‘usb_create_sysfs_intf_files’:
../drivers/usb/core/sysfs.c:1266:3: warning: suggest braces around empty body in an ‘if’ statement [-Wempty-body]
   ; /* We don't actually care if the function fails. */
   ^

Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: linux-usb@...r.kernel.org
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Andrew Morton <akpm@...ux-foundation.org>
---
 drivers/usb/core/sysfs.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- linux-next-20200327.orig/drivers/usb/core/sysfs.c
+++ linux-next-20200327/drivers/usb/core/sysfs.c
@@ -1263,7 +1263,7 @@ void usb_create_sysfs_intf_files(struct
 	if (!alt->string && !(udev->quirks & USB_QUIRK_CONFIG_INTF_STRINGS))
 		alt->string = usb_cache_string(udev, alt->desc.iInterface);
 	if (alt->string && device_create_file(&intf->dev, &dev_attr_interface))
-		;	/* We don't actually care if the function fails. */
+		do_empty(); /* We don't actually care if the function fails. */
 	intf->sysfs_files_created = 1;
 }