[PATCH 19/21] tools include: add IS_ERR_OR_NULL to err.h

[Levin, Alexander (Sasha Levin)]

Signed-off-by: Sasha Levin <alexander.le...@verizon.com>
---
 tools/include/linux/err.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/tools/include/linux/err.h b/tools/include/linux/err.h
index bdc3dd8131d4..abf0478a8fb2 100644
--- a/tools/include/linux/err.h
+++ b/tools/include/linux/err.h
@@ -46,4 +46,9 @@ static inline bool __must_check IS_ERR(__force const void 
*ptr)
        return IS_ERR_VALUE((unsigned long)ptr);
 }
 
+static inline bool __must_check IS_ERR_OR_NULL(__force const void *ptr)
+{
+       return unlikely(!ptr) || IS_ERR_VALUE((unsigned long)ptr);
+}
+
 #endif /* _LINUX_ERR_H */
-- 
2.11.0