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authorHans Verkuil <hverkuil@xs4all.nl>2010-10-11 19:36:37 +0400
committerMauro Carvalho Chehab <mchehab@redhat.com>2010-10-21 07:18:15 +0400
commit9c84d89bf13b702ca0e0db5eb3880300c4bd58f4 (patch)
treec0b11f9fe5e386187881d59247a9e274046d7660 /Documentation/video4linux/v4l2-framework.txt
parent1cd72781db93c00fbee0bf4aed9e310a1d589738 (diff)
downloadlinux-9c84d89bf13b702ca0e0db5eb3880300c4bd58f4.tar.xz
[media] radio-mr800: fix locking order
Don't hold the lock before unregistering the device, since when the device is unregistered the datastruct containing the lock may be freed (if the refcount went to 0). Also fixed the framework documentation that erroneously suggested the wrong locking order as well. Reported-by: David Ellingsworth <david@identd.dyndns.org> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Acked-by: David Ellingsworth <david@identd.dyndns.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'Documentation/video4linux/v4l2-framework.txt')
-rw-r--r--Documentation/video4linux/v4l2-framework.txt2
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/video4linux/v4l2-framework.txt b/Documentation/video4linux/v4l2-framework.txt
index a128e012a45c..f22f35c271f3 100644
--- a/Documentation/video4linux/v4l2-framework.txt
+++ b/Documentation/video4linux/v4l2-framework.txt
@@ -488,7 +488,7 @@ also waits in the code, then you should do the same to allow other processes
to access the device node while the first process is waiting for something.
The implementation of a hotplug disconnect should also take the lock before
-calling v4l2_device_disconnect and video_unregister_device.
+calling v4l2_device_disconnect.
video_device registration
-------------------------