Add PTR_ERR_OR_ZERO, and tools can use it.
Signed-off-by: Ding Xiang <dingxi...@cmss.chinamobile.com>
---
tools/include/linux/err.h | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/tools/include/linux/err.h b/tools/include/linux/err.h
index 7a8b61a..0946496 100644
--- a/tools/include/linux/err.h
+++ b/tools/include/linux/err.h
@@ -52,4 +52,11 @@ static inline bool __must_check IS_ERR_OR_NULL(__force const
void *ptr)
return unlikely(!ptr) || IS_ERR_VALUE((unsigned long)ptr);
}
+static inline int __must_check PTR_ERR_OR_ZERO(__force const void *ptr)
+{
+ if (IS_ERR(ptr))
+ return PTR_ERR(ptr);
+ else
+ return 0;
+}
#endif /* _LINUX_ERR_H */
--
1.9.1
