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path: root/drivers/media/usb/au0828/au0828-input.c
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Diffstat (limited to 'drivers/media/usb/au0828/au0828-input.c')
-rw-r--r--drivers/media/usb/au0828/au0828-input.c14
1 files changed, 10 insertions, 4 deletions
diff --git a/drivers/media/usb/au0828/au0828-input.c b/drivers/media/usb/au0828/au0828-input.c
index 63995f97dc65..b0f067971979 100644
--- a/drivers/media/usb/au0828/au0828-input.c
+++ b/drivers/media/usb/au0828/au0828-input.c
@@ -129,6 +129,10 @@ static int au0828_get_key_au8522(struct au0828_rc *ir)
int prv_bit, bit, width;
bool first = true;
+ /* do nothing if device is disconnected */
+ if (ir->dev->dev_state == DEV_DISCONNECTED)
+ return 0;
+
/* Check IR int */
rc = au8522_rc_read(ir, 0xe1, -1, buf, 1);
if (rc < 0 || !(buf[0] & (1 << 4))) {
@@ -255,8 +259,11 @@ static void au0828_rc_stop(struct rc_dev *rc)
cancel_delayed_work_sync(&ir->work);
- /* Disable IR */
- au8522_rc_clear(ir, 0xe0, 1 << 4);
+ /* do nothing if device is disconnected */
+ if (ir->dev->dev_state != DEV_DISCONNECTED) {
+ /* Disable IR */
+ au8522_rc_clear(ir, 0xe0, 1 << 4);
+ }
}
static int au0828_probe_i2c_ir(struct au0828_dev *dev)
@@ -363,8 +370,7 @@ void au0828_rc_unregister(struct au0828_dev *dev)
if (!ir)
return;
- if (ir->rc)
- rc_unregister_device(ir->rc);
+ rc_unregister_device(ir->rc);
/* done */
kfree(ir);