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authorDean Anderson <dean@sensoray.com>2009-04-20 18:07:44 -0400
committerMauro Carvalho Chehab <mchehab@redhat.com>2009-04-29 14:41:14 -0400
commit9d63cec16829ac3600c5014d207a659df3b93c9a (patch)
tree89edc69720bba4a026ac6228b8b79ab24565f473 /drivers
parent272aa3966b3244e576c5c07bfff77ea320b89317 (diff)
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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/media/video/s2255drv.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/media/video/s2255drv.c b/drivers/media/video/s2255drv.c
index 5202cadb2aae..30f4698be90a 100644
--- a/drivers/media/video/s2255drv.c
+++ b/drivers/media/video/s2255drv.c
@@ -1237,6 +1237,7 @@ static int s2255_set_mode(struct s2255_dev *dev, unsigned long chn,
1237 buffer[1] = (u32) chn_rev; 1237 buffer[1] = (u32) chn_rev;
1238 buffer[2] = CMD_SET_MODE; 1238 buffer[2] = CMD_SET_MODE;
1239 memcpy(&buffer[3], &dev->mode[chn], sizeof(struct s2255_mode)); 1239 memcpy(&buffer[3], &dev->mode[chn], sizeof(struct s2255_mode));
1240 dev->setmode_ready[chn] = 0;
1240 res = s2255_write_config(dev->udev, (unsigned char *)buffer, 512); 1241 res = s2255_write_config(dev->udev, (unsigned char *)buffer, 512);
1241 if (debug) 1242 if (debug)
1242 dump_verify_mode(dev, mode); 1243 dump_verify_mode(dev, mode);
@@ -1245,7 +1246,6 @@ static int s2255_set_mode(struct s2255_dev *dev, unsigned long chn,
1245 1246
1246 /* wait at least 3 frames before continuing */ 1247 /* wait at least 3 frames before continuing */
1247 if (mode->restart) { 1248 if (mode->restart) {
1248 dev->setmode_ready[chn] = 0;
1249 wait_event_timeout(dev->wait_setmode[chn], 1249 wait_event_timeout(dev->wait_setmode[chn],
1250 (dev->setmode_ready[chn] != 0), 1250 (dev->setmode_ready[chn] != 0),
1251 msecs_to_jiffies(S2255_SETMODE_TIMEOUT)); 1251 msecs_to_jiffies(S2255_SETMODE_TIMEOUT));