staging: unisys: dereferencing NULL pointer

we can reach the label Away in total five situation and in four of
of them pDevInfo is NULL. so we were basically dereferencing a NULL
pointer.

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
1 file changed