The driver is well written to be used as a module, just the exit call
is missing.
Signed-off-by: Takashi Iwai <ti...@suse.de>
---
drivers/char/Kconfig | 2 +-
drivers/char/ttyprintk.c | 13 ++++++++++++-
2 files changed, 13 insertions(+), 2 deletions(-)
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index 1386749b48ff..97816b133c7f 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -40,7 +40,7 @@ config SGI_MBCS
source "drivers/tty/serial/Kconfig"
config TTY_PRINTK
- bool "TTY driver to output user messages via printk"
+ tristate "TTY driver to output user messages via printk"
depends on EXPERT && TTY
default n
---help---
diff --git a/drivers/char/ttyprintk.c b/drivers/char/ttyprintk.c
index 2a39c5790364..73606eaaba71 100644
--- a/drivers/char/ttyprintk.c
+++ b/drivers/char/ttyprintk.c
@@ -17,7 +17,7 @@
#include <linux/device.h>
#include <linux/serial.h>
#include <linux/tty.h>
-#include <linux/export.h>
+#include <linux/module.h>
struct ttyprintk_port {
struct tty_port port;
@@ -214,4 +214,15 @@ error:
tty_port_destroy(&tpk_port.port);
return ret;
}
+
+static void ttyprintk_exit(void)
+{
+ tty_unregister_driver(ttyprintk_driver);
+ put_tty_driver(ttyprintk_driver);
+ tty_port_destroy(&tpk_port.port);
+}
+
device_initcall(ttyprintk_init);
+module_exit(ttyprintk_exit);
+
+MODULE_LICENSE("GPL");
--
1.9.1
--
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