[PATCH] error-injection: Include definitions for bool and true/false

[Qu Wenruo]

If error injection user hasn't included definitions for bool and
true/false, kernel may not compile under certain case, just like:

  All errors (new ones prefixed by >>):

     In file included from fs//btrfs/tree-checker.c:18:
  >> include/linux/error-injection.h:15:15: error: unknown type name 'bool'
      static inline bool within_error_injection_list(unsigned long addr)
                    ^~~~
     include/linux/error-injection.h: In function 'within_error_injection_list':
  >> include/linux/error-injection.h:17:9: error: 'false' undeclared (first use in this function)
       return false;
              ^~~~~
     include/linux/error-injection.h:17:9: note: each undeclared identifier is reported only once for each function it appears in

Anyway the fix is straightforward, include <linux/types.h> for bool and
<linux/stddef.h> for true/false in error-injection.h to make it self
contained.

Reported-by: kbuild test robot <lkp@xxxxxxxxx>
Signed-off-by: Qu Wenruo <wqu@xxxxxxxx>
---
 include/linux/error-injection.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/linux/error-injection.h b/include/linux/error-injection.h
index 280c61ecbf20..1a8e09978616 100644
--- a/include/linux/error-injection.h
+++ b/include/linux/error-injection.h
@@ -2,6 +2,8 @@
 #ifndef _LINUX_ERROR_INJECTION_H
 #define _LINUX_ERROR_INJECTION_H
 
+#include <linux/types.h>	/* for bool */
+#include <linux/stddef.h>	/* for true/false */
 #ifdef CONFIG_FUNCTION_ERROR_INJECTION
 
 #include <asm/error-injection.h>
-- 
2.21.0