On Sat, Jun 15, 2019 at 10:47:28AM +0300, Andrei Koshkosh wrote: > --- > drivers/media/usb/dvb-usb-v2/dvbsky.c | 18 ++++++++++-------- > 1 file changed, 10 insertions(+), 8 deletions(-) > Missing signed-off-by. Please read: https://www.kernel.org/doc/html/latest/process/submitting-patches.html > diff --git a/drivers/media/usb/dvb-usb-v2/dvbsky.c b/drivers/media/usb/dvb-usb-v2/dvbsky.c > index c41e10b..0b5da891 100644 > --- a/drivers/media/usb/dvb-usb-v2/dvbsky.c > +++ b/drivers/media/usb/dvb-usb-v2/dvbsky.c > @@ -22,7 +22,7 @@ MODULE_PARM_DESC(disable_rc, "Disable inbuilt IR receiver."); > DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); > > struct dvbsky_state { > - struct mutex stream_mutex; > + //struct mutex stream_mutex; Please remove rather comment out. > u8 ibuf[DVBSKY_BUF_LEN]; > u8 obuf[DVBSKY_BUF_LEN]; > u8 last_lock; > @@ -61,16 +61,18 @@ static int dvbsky_stream_ctrl(struct dvb_usb_device *d, u8 onoff) > { > struct dvbsky_state *state = d_to_priv(d); > int ret; > - u8 obuf_pre[3] = { 0x37, 0, 0 }; > - u8 obuf_post[3] = { 0x36, 3, 0 }; > + static u8 obuf_pre[3] = { 0x37, 0, 0 }; > + static u8 obuf_post[3] = { 0x36, 3, 0 }; Can these be const? > > - mutex_lock(&state->stream_mutex); > - ret = dvbsky_usb_generic_rw(d, obuf_pre, 3, NULL, 0); > + mutex_lock(&d->usb_mutex); > + memcpy(state->obuf, obuf_pre, 3); > + ret = dvb_usbv2_generic_write_locked(d, state->obuf, 3); > if (!ret && onoff) { > msleep(20); > - ret = dvbsky_usb_generic_rw(d, obuf_post, 3, NULL, 0); > + memcpy(state->obuf, obuf_post, 3); > + ret = dvb_usbv2_generic_write_locked(d, state->obuf, 3); > } > - mutex_unlock(&state->stream_mutex); > + mutex_unlock(&d->usb_mutex); > return ret; > } > > @@ -599,7 +601,7 @@ static int dvbsky_init(struct dvb_usb_device *d) > if (ret) > return ret; > */ > - mutex_init(&state->stream_mutex); > + //mutex_init(&state->stream_mutex); Remove. > > state->last_lock = 0; > > -- > 2.7.4 Thanks, Sean
