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path: root/drivers/media/video/ir-kbd-i2c.c
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Diffstat (limited to 'drivers/media/video/ir-kbd-i2c.c')
-rw-r--r--drivers/media/video/ir-kbd-i2c.c42
1 files changed, 16 insertions, 26 deletions
diff --git a/drivers/media/video/ir-kbd-i2c.c b/drivers/media/video/ir-kbd-i2c.c
index 3ab875d036e1..04f192a0398a 100644
--- a/drivers/media/video/ir-kbd-i2c.c
+++ b/drivers/media/video/ir-kbd-i2c.c
@@ -244,7 +244,7 @@ static int get_key_avermedia_cardbus(struct IR_i2c *ir,
/* ----------------------------------------------------------------------- */
-static void ir_key_poll(struct IR_i2c *ir)
+static int ir_key_poll(struct IR_i2c *ir)
{
static u32 ir_key, ir_raw;
int rc;
@@ -253,20 +253,28 @@ static void ir_key_poll(struct IR_i2c *ir)
rc = ir->get_key(ir, &ir_key, &ir_raw);
if (rc < 0) {
dprintk(2,"error\n");
- return;
+ return rc;
}
if (rc) {
dprintk(1, "%s: keycode = 0x%04x\n", __func__, ir_key);
rc_keydown(ir->rc, ir_key, 0);
}
+ return 0;
}
static void ir_work(struct work_struct *work)
{
+ int rc;
struct IR_i2c *ir = container_of(work, struct IR_i2c, work.work);
- ir_key_poll(ir);
+ rc = ir_key_poll(ir);
+ if (rc == -ENODEV) {
+ rc_unregister_device(ir->rc);
+ ir->rc = NULL;
+ return;
+ }
+
schedule_delayed_work(&ir->work, msecs_to_jiffies(ir->polling_interval));
}
@@ -446,7 +454,8 @@ static int ir_remove(struct i2c_client *client)
cancel_delayed_work_sync(&ir->work);
/* unregister device */
- rc_unregister_device(ir->rc);
+ if (ir->rc)
+ rc_unregister_device(ir->rc);
/* free memory */
kfree(ir);
@@ -462,7 +471,7 @@ static const struct i2c_device_id ir_kbd_id[] = {
{ }
};
-static struct i2c_driver driver = {
+static struct i2c_driver ir_kbd_driver = {
.driver = {
.name = "ir-kbd-i2c",
},
@@ -471,29 +480,10 @@ static struct i2c_driver driver = {
.id_table = ir_kbd_id,
};
+module_i2c_driver(ir_kbd_driver);
+
/* ----------------------------------------------------------------------- */
MODULE_AUTHOR("Gerd Knorr, Michal Kochanowicz, Christoph Bartelmus, Ulrich Mueller");
MODULE_DESCRIPTION("input driver for i2c IR remote controls");
MODULE_LICENSE("GPL");
-
-static int __init ir_init(void)
-{
- return i2c_add_driver(&driver);
-}
-
-static void __exit ir_fini(void)
-{
- i2c_del_driver(&driver);
-}
-
-module_init(ir_init);
-module_exit(ir_fini);
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-basic-offset: 8
- * End:
- */