From 60750501da4eb0c020e971b45ae3a964c903e12d Mon Sep 17 00:00:00 2001
From: Marvin Borner
Date: Sun, 28 Mar 2021 14:01:53 +0200
Subject: Fun with widgets

---
 libs/libc/inc/errno.h | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'libs/libc')

diff --git a/libs/libc/inc/errno.h b/libs/libc/inc/errno.h
index e226aba..133f543 100644
--- a/libs/libc/inc/errno.h
+++ b/libs/libc/inc/errno.h
@@ -47,6 +47,12 @@ typedef s32 res;
 #ifdef userspace
 #define errno (*__errno())
 extern u32 *__errno(void);
+
+#define return_errno(__num)                                                                        \
+	{                                                                                          \
+		errno = __num;                                                                     \
+		return -errno;                                                                     \
+	}
 #endif
 
 #endif
-- 
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