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Subject: media: rc: ensure input/lirc device can be opened after register
Author: Sean Young <sean@xxxxxxxx>
Date: Thu May 24 05:47:17 2018 -0400
Since commit cb84343fced1 ("media: lirc: do not call close() or open() on
unregistered devices") rc_open() will return -ENODEV if rcdev->registered
is false. Ensure this is set before we register the input device and the
lirc device, else we have a short window where the neither the lirc or
input device can be opened.
Fixes: cb84343fced1 ("media: lirc: do not call close() or open() on unregistered devices")
Cc: stable@xxxxxxxxxxxxxxx # v4.16+
Signed-off-by: Sean Young <sean@xxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@xxxxxxxxxx>
drivers/media/rc/rc-main.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/drivers/media/rc/rc-main.c b/drivers/media/rc/rc-main.c
index b7071bde670a..2e222d9ee01f 100644
--- a/drivers/media/rc/rc-main.c
+++ b/drivers/media/rc/rc-main.c
@@ -1862,6 +1862,8 @@ int rc_register_device(struct rc_dev *dev)
dev->device_name ?: "Unspecified device", path ?: "N/A");
kfree(path);
+ dev->registered = true;
+
if (dev->driver_type != RC_DRIVER_IR_RAW_TX) {
rc = rc_setup_rx_device(dev);
if (rc)
@@ -1881,8 +1883,6 @@ int rc_register_device(struct rc_dev *dev)
goto out_lirc;
}
- dev->registered = true;
-
dev_dbg(&dev->dev, "Registered rc%u (driver: %s)\n", dev->minor,
dev->driver_name ? dev->driver_name : "unknown");
