V4L/DVB (11570): patch: s2255drv: fix race condition on set mode
authorDean Anderson <dean@sensoray.com>
Mon, 20 Apr 2009 22:07:44 +0000 (19:07 -0300)
committerMauro Carvalho Chehab <mchehab@redhat.com>
Wed, 29 Apr 2009 18:41:14 +0000 (15:41 -0300)
set_modeready flag must be set before command sent to USB in
s2255_write_config.

Signed-off-by: Dean Anderson <dean@sensoray.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
drivers/media/video/s2255drv.c

index 5202cad..30f4698 100644 (file)
@@ -1237,6 +1237,7 @@ static int s2255_set_mode(struct s2255_dev *dev, unsigned long chn,
        buffer[1] = (u32) chn_rev;
        buffer[2] = CMD_SET_MODE;
        memcpy(&buffer[3], &dev->mode[chn], sizeof(struct s2255_mode));
+       dev->setmode_ready[chn] = 0;
        res = s2255_write_config(dev->udev, (unsigned char *)buffer, 512);
        if (debug)
                dump_verify_mode(dev, mode);
@@ -1245,7 +1246,6 @@ static int s2255_set_mode(struct s2255_dev *dev, unsigned long chn,
 
        /* wait at least 3 frames before continuing */
        if (mode->restart) {
-               dev->setmode_ready[chn] = 0;
                wait_event_timeout(dev->wait_setmode[chn],
                                   (dev->setmode_ready[chn] != 0),
                                   msecs_to_jiffies(S2255_SETMODE_TIMEOUT));