bnx2x: Get rid of useless temporary variable

Replace pattern

 int status;
 ...
 status = func(...);
 return status;

by

 return func(...);

No functional change intented.

Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>