staging: ozwpan: Fix wrong error check.
staging: ozwpan: Fix wrong error check.

schedule_work() returns true if succeeded & false on failure,
error check was doing exactly reverse.
Also removes extra variable.

Signed-off-by: Rupesh Gujare <40ecdfcfd146cc8d8b094cb0f2aaf3e2e9d3e450@atmel.com>
Signed-off-by: Greg Kroah-Hartman <4645f7897fd33786a2ee1264d590b3c400559d85@linuxfoundation.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs