diff options
| author | Mauro Carvalho Chehab <[email protected]> | 2020-11-27 07:40:21 +0100 |
|---|---|---|
| committer | Mauro Carvalho Chehab <[email protected]> | 2020-11-27 07:40:21 +0100 |
| commit | d0ac1a26ed5943127cb0156148735f5f52a07075 (patch) | |
| tree | 3a850481ba602979b2111a3e3d14ae821e498f5b | |
| parent | 711561a41d1f70ad939c3ff3cf00e75fa8238337 (diff) | |
media: gp8psk: initialize stats at power control logic
As reported on:
https://lore.kernel.org/linux-media/[email protected]/
if gp8psk_usb_in_op() returns an error, the status var is not
initialized. Yet, this var is used later on, in order to
identify:
- if the device was already started;
- if firmware has loaded;
- if the LNBf was powered on.
Using status = 0 seems to ensure that everything will be
properly powered up.
So, instead of the proposed solution, let's just set
status = 0.
Reported-by: syzbot <[email protected]>
Reported-by: Willem de Bruijn <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
| -rw-r--r-- | drivers/media/usb/dvb-usb/gp8psk.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/media/usb/dvb-usb/gp8psk.c b/drivers/media/usb/dvb-usb/gp8psk.c index c07f46f5176e..b4f661bb5648 100644 --- a/drivers/media/usb/dvb-usb/gp8psk.c +++ b/drivers/media/usb/dvb-usb/gp8psk.c @@ -182,7 +182,7 @@ out_rel_fw: static int gp8psk_power_ctrl(struct dvb_usb_device *d, int onoff) { - u8 status, buf; + u8 status = 0, buf; int gp_product_id = le16_to_cpu(d->udev->descriptor.idProduct); if (onoff) { |