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[media] cx88: protect per-device driver list with device lock
[cascardo/linux.git]
/
drivers
/
media
/
video
/
cx88
/
cx88-dvb.c
diff --git
a/drivers/media/video/cx88/cx88-dvb.c
b/drivers/media/video/cx88/cx88-dvb.c
index
7b8c9d3
..
84002bc
100644
(file)
--- a/
drivers/media/video/cx88/cx88-dvb.c
+++ b/
drivers/media/video/cx88/cx88-dvb.c
@@
-133,7
+133,10
@@
static int cx88_dvb_bus_ctrl(struct dvb_frontend* fe, int acquire)
return -EINVAL;
}
+ mutex_lock(&dev->core->lock);
drv = cx8802_get_driver(dev, CX88_MPEG_DVB);
+ mutex_unlock(&dev->core->lock);
+
if (drv) {
if (acquire){
dev->frontends.active_fe_id = fe_id;