Drivers: Misc: tsl2250: fix warnings, unsigned long will never < 0
Drivers: Misc: tsl2250: fix warnings, unsigned long will never < 0

  val is unsigned long which never < 0

Signed-off-by: Chen Gang <a683964d4489dfcd1de21d1566170b1d560c877b@asianux.com>
Signed-off-by: Greg Kroah-Hartman <4645f7897fd33786a2ee1264d590b3c400559d85@linuxfoundation.org>

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