Input: mousedev - factor out psaux code to reduce #ifdefery

Reviewed-by: David Herrmann <dh.herrmann@googlemail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

1 files changed, 30 insertions, 17 deletions

diff --git a/drivers/input/mousedev.c b/drivers/input/mousedev.c
index 964e43d81e29..8d3942fe1c39 100644
--- a/drivers/input/mousedev.c
+++ b/drivers/input/mousedev.c
@@ -25,9 +25,6 @@
 #include <linux/major.h>
 #include <linux/device.h>
 #include <linux/kernel.h>
-#ifdef CONFIG_INPUT_MOUSEDEV_PSAUX
-#include <linux/miscdevice.h>
-#endif
 
 MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
 MODULE_DESCRIPTION("Mouse (ExplorerPS/2) device interfaces");
@@ -1064,10 +1061,36 @@ static struct input_handler mousedev_handler = {
 };
 
 #ifdef CONFIG_INPUT_MOUSEDEV_PSAUX
+#include <linux/miscdevice.h>
+
 static struct miscdevice psaux_mouse = {
-        PSMOUSE_MINOR, "psaux", &mousedev_fops
+        .minor  = PSMOUSE_MINOR,
+        .name   = "psaux",
+        .fops   = &mousedev_fops,
 };
-static int psaux_registered;
+
+static bool psaux_registered;
+
+static void __init mousedev_psaux_register(void)
+{
+        int error;
+
+        error = misc_register(&psaux_mouse);
+        if (error)
+                pr_warn("could not register psaux device, error: %d\n",
+                           error);
+        else
+                psaux_registered = true;
+}
+
+static void __exit mousedev_psaux_unregister(void)
+{
+        if (psaux_registered)
+                misc_deregister(&psaux_mouse);
+}
+#else
+static inline void mousedev_psaux_register(void) { }
+static inline void mousedev_psaux_unregister(void) { }
 #endif
 
 static int __init mousedev_init(void)
@@ -1084,14 +1107,7 @@ static int __init mousedev_init(void)
                 return error;
         }
 
-#ifdef CONFIG_INPUT_MOUSEDEV_PSAUX
-        error = misc_register(&psaux_mouse);
-        if (error)
-                pr_warn("could not register psaux device, error: %d\n",
-                           error);
-        else
-                psaux_registered = 1;
-#endif
+        mousedev_psaux_register();
 
         pr_info("PS/2 mouse device common for all mice\n");
 
@@ -1100,10 +1116,7 @@ static int __init mousedev_init(void)
 
 static void __exit mousedev_exit(void)
 {
-#ifdef CONFIG_INPUT_MOUSEDEV_PSAUX
-        if (psaux_registered)
-                misc_deregister(&psaux_mouse);
-#endif
+        mousedev_psaux_unregister();
         input_unregister_handler(&mousedev_handler);
         mousedev_destroy(mousedev_mix);
 }