V4L/DVB (11570): patch: s2255drv: fix race condition on set mode
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>
diff --git a/drivers/media/video/s2255drv.c b/drivers/media/video/s2255drv.c
index 5202cad..30f4698 100644
--- a/drivers/media/video/s2255drv.c
+++ b/drivers/media/video/s2255drv.c
@@ -1237,6 +1237,7 @@
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 @@
/* 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));