From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Tobin C. Harding" <tobin@kernel.org>
Subject: [PATCH v4 1/6] lib/test_printf: Add empty module_exit function
Date: Fri,  5 Apr 2019 12:58:54 +1100
Message-Id: <20190405015859.32755-2-tobin@kernel.org>
In-Reply-To: <20190405015859.32755-1-tobin@kernel.org>
References: <20190405015859.32755-1-tobin@kernel.org>
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To: Shuah Khan <shuah@kernel.org>
Cc: "Tobin C. Harding" <tobin@kernel.org>, Kees Cook <keescook@chromium.org>, Jann Horn <jannh@google.com>, Andy Shevchenko <andriy.shevchenko@linux.intel.com>, Randy Dunlap <rdunlap@infradead.org>, Rasmus Villemoes <linux@rasmusvillemoes.dk>, Stephen Rothwell <sfr@canb.auug.org.au>, Andy Lutomirski <luto@amacapital.net>, Daniel Micay <danielmicay@gmail.com>, Arnd Bergmann <arnd@arndb.de>, Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>, "Gustavo A. R. Silva" <gustavo@embeddedor.com>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Alexander Shishkin <alexander.shishkin@linux.intel.com>, kernel-hardening@lists.openwall.com, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org
List-ID: <kernel-hardening.lists.openwall.com>

Currently the test_printf module does not have an exit function, this
prevents the module from being unloaded.  If we cannot unload the
module we cannot run the tests a second time.

Add an empty exit function.

Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Tobin C. Harding <tobin@kernel.org>
---
 lib/test_printf.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/lib/test_printf.c b/lib/test_printf.c
index 659b6cc0d483..601e8519319a 100644
--- a/lib/test_printf.c
+++ b/lib/test_printf.c
@@ -615,5 +615,11 @@ test_printf_init(void)
 
 module_init(test_printf_init);
 
+static void __exit test_printf_exit(void)
+{
+}
+
+module_exit(test_printf_exit);
+
 MODULE_AUTHOR("Rasmus Villemoes <linux@rasmusvillemoes.dk>");
 MODULE_LICENSE("GPL");
-- 
2.21.0