[PATCH v4 1/4] digest.h: needs errno definitions

[Bastian Krause <bst@xxxxxxxxxxxxxx>]

From: Juergen Borleis <jbe@xxxxxxxxxxxxxx>

digest_set_key() returns -ENOTSUPP conditionally, so include errno.h.

Fixes: 2f3c3f512b ("digest: add HMAC support for md5, sha1, sha224, sha256, sha384, sha512")
Signed-off-by: Juergen Borleis <jbe@xxxxxxxxxxxxxx>
Signed-off-by: Bastian Krause <bst@xxxxxxxxxxxxxx>
---
 include/digest.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/digest.h b/include/digest.h
index 474bdd160a..176084146b 100644
--- a/include/digest.h
+++ b/include/digest.h
@@ -20,6 +20,7 @@
 #define __DIGEST_H__
 
 #include <linux/list.h>
+#include <errno.h>
 
 struct digest;
 
-- 
2.23.0


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