[PATCH] tracing: Fix undelared ENOSYS in include/linux/tracepoint.h

[Wu Zhangjin]

From: Wu Zhangjin <wuzhangjin@xxxxxxxxx>

The header file include/linux/tracepoint.h may be included without
include/linux/errno.h and then the compiler will fail on building for
undelcared ENOSYS. This patch fixes this problem via including <linux/errno.h>
to include/linux/tracepoint.h.

Signed-off-by: Wu Zhangjin <wuzhangjin@xxxxxxxxx>
---
 include/linux/tracepoint.h |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h
index 9a59d1f..103d1b6 100644
--- a/include/linux/tracepoint.h
+++ b/include/linux/tracepoint.h
@@ -14,6 +14,7 @@
  * See the file COPYING for more details.
  */
 
+#include <linux/errno.h>
 #include <linux/types.h>
 #include <linux/rcupdate.h>
 
-- 
1.6.3.3

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