iwlwifi: set "echo" host command length

"echo" host command has no data, set the length to 0

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Wey-Yi Guy 2011-11-10 06:55:18 -08:00 • committed by John W. Linville
commit 89db3b972c