btrfs-progs: ioctl: fix compilation if ioctl.h is included standalone

Definition of NULL is missing if ioctl.h is included standalone or when no other include pulls the definition. Reported-by: Sergei Trofimovich <slyich@gmail.com> Signed-off-by: David Sterba <dsterba@suse.com>
2016-11-14 16:43:15 +01:00 · 2016-11-14 16:43:15 +01:00 · 08a072c709
parent becd520b5c
commit 08a072c709
1 changed files with 1 additions and 0 deletions
--- a/ioctl.h
+++ b/ioctl.h
@ -25,6 +25,7 @@ extern "C" {

 #include <asm/types.h>
 #include <linux/ioctl.h>
+#include <stddef.h>

 #ifndef __user
 #define __user