tree f43ea87c2808916a5f9f27238d82fd4481383cf2
parent 57e4f041bfffa191a318dab44eb991d79a6a9d5c
author Oliver Neukum <oneukum@suse.de> 1170945773 +0100
committer Greg Kroah-Hartman <gregkh@suse.de> 1171668739 -0800

USB: fix autosuspend race in skeleton driver

as the skeleton driver was made ready for autosuspend a race condition
was introduced. The reference to get device must be gotten before the
autosuspend counter is upped, as this operation may sleep, dropping BKL.
Dropping BKL means that the pointer to the device may become invalid.
Here's the fix.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>