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From: Lucas De Marchi <lucas.de.marchi@gmail.com>
Date: Thu, 2 May 2013 13:22:57 -0300
Subject: [PATCH] missing: Don't call syscall() with syscallno == -1
Reported-by: Jean-Francis Roy <jeanfrancis@funtoo.org>
Reported-by: Jan Luebbe <jlu@pengutronix.de>
---
libkmod/missing.h | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/libkmod/missing.h b/libkmod/missing.h
index edb88b9..b31af84 100644
--- a/libkmod/missing.h
+++ b/libkmod/missing.h
@@ -1,5 +1,6 @@
#pragma once
+#include <errno.h>
#include <unistd.h>
#include <sys/syscall.h>
@@ -15,13 +16,14 @@
# define MODULE_INIT_IGNORE_VERMAGIC 2
#endif
-#ifndef __NR_finit_module
-# define __NR_finit_module -1
-#endif
-
#ifndef HAVE_FINIT_MODULE
static inline int finit_module(int fd, const char *uargs, int flags)
{
+#ifndef __NR_finit_module
+ errno = ENOSYS;
+ return -1;
+#else
return syscall(__NR_finit_module, fd, uargs, flags);
+#endif
}
#endif
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