tree f9b8c1d14fb4d93bd19344227f4ba8d90d5cab1b
parent 0ad4ece5bbd4d2104564c7dbd477ae0c729d4fcc
author Luca Coelho <luciano.coelho@intel.com> 1454418675 +0200
committer Emmanuel Grumbach <emmanuel.grumbach@intel.com> 1455518950 +0200

iwlwifi: mvm: don't allow sched scans without matches to be started

The firmware can perform a scheduled scan with not matchsets passed,
but it can't send notification that results were found.  Since the
userspace then cannot know when we got new results and the firmware
wouldn't trigger a wake in case we are sleeping, it's better not to
allow scans without matchsets.

This fixes https://bugzilla.kernel.org/show_bug.cgi?id=110831

Cc: <stable@vger.kernel.org> [3.17+]
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>