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authorFrank Schaefer <fschaefer.oss@googlemail.com>2014-09-19 00:55:45 +0400
committerMauro Carvalho Chehab <mchehab@osg.samsung.com>2014-09-22 04:27:57 +0400
commit8e2c8717c1812628b5538c05250057b37c66fdbe (patch)
tree366dea5547845a47d346cde54ca933c1343936b7 /drivers/media/usb/em28xx/em28xx.h
parentc7854c2c5d692a329b4d9a9a73bcf36ae137ee7c (diff)
downloadlinux-8e2c8717c1812628b5538c05250057b37c66fdbe.tar.xz
[media] em28xx-v4l: get rid of field "users" in struct em28xx_v4l2"
This reverts commit 747dba7de2a51a3db58b665ed3bc8c07921546ec. It breaks concurrent vbi and video capturing: While v4l2->users is the number of users of the whole device (all device nodes), v4l2_fh_is_singular() only checks the number of users of a specific device node. As a result. if one device node is open and a second device node is opened (closed), the device is reinitialized (streaming is stopped). Reported-by: Hans Verkuil <hans.verkuil@cisco.com> Tested-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Signed-off-by: Frank Schäfer <fschaefer.oss@googlemail.com> Cc: stable@vger.kernel.org Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media/usb/em28xx/em28xx.h')
-rw-r--r--drivers/media/usb/em28xx/em28xx.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/media/usb/em28xx/em28xx.h b/drivers/media/usb/em28xx/em28xx.h
index 84ef8efdb148..4360338e7b31 100644
--- a/drivers/media/usb/em28xx/em28xx.h
+++ b/drivers/media/usb/em28xx/em28xx.h
@@ -524,6 +524,7 @@ struct em28xx_v4l2 {
int sensor_yres;
int sensor_xtal;
+ int users; /* user count for exclusive use */
int streaming_users; /* number of actively streaming users */
u32 frequency; /* selected tuner frequency */