[PATCH 7/9] drivers/base: fix empty-body warnings in devcoredump.c

[Randy Dunlap <rdunlap@xxxxxxxxxxxxx>]

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

../drivers/base/devcoredump.c:297:42: warning: suggest braces around empty body in an ‘if’ statement [-Wempty-body]
../drivers/base/devcoredump.c:301:42: warning: suggest braces around empty body in an ‘if’ statement [-Wempty-body]

Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Cc: Johannes Berg <johannes@xxxxxxxxxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
 drivers/base/devcoredump.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

--- linux-next-20200417.orig/drivers/base/devcoredump.c
+++ linux-next-20200417/drivers/base/devcoredump.c
@@ -9,6 +9,7 @@
  *
  * Author: Johannes Berg <johannes@xxxxxxxxxxxxxxxx>
  */
+#include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/device.h>
 #include <linux/devcoredump.h>
@@ -294,11 +295,11 @@ void dev_coredumpm(struct device *dev, s
 
 	if (sysfs_create_link(&devcd->devcd_dev.kobj, &dev->kobj,
 			      "failing_device"))
-		/* nothing - symlink will be missing */;
+		do_empty(); /* nothing - symlink will be missing */
 
 	if (sysfs_create_link(&dev->kobj, &devcd->devcd_dev.kobj,
 			      "devcoredump"))
-		/* nothing - symlink will be missing */;
+		do_empty(); /* nothing - symlink will be missing */
 
 	INIT_DELAYED_WORK(&devcd->del_wk, devcd_del);
 	schedule_delayed_work(&devcd->del_wk, DEVCD_TIMEOUT);