Pointers should be printed with %p or %px rather than cast to 'unsigned
long' and printed with %lx.

Change %lx to %p to print the hashed pointer.

Link: https://lore.kernel.org/r/20210929122538.1158235-1-qtxuning1999@sjtu.edu.cnSigned-off-by: Guo Zhi <qtxuning1999@sjtu.edu.cn>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>