When calling ttm_range_man_fini(), 'man' may be uninitialized, which may
cause a null pointer dereference bug.
Fix this by checking if it is a null pointer.
This log reveals it:
[7.902580 ] BUG: kernel NULL pointer dereference, address: 0058
[7.905721 ] RIP: 0010:ttm_range_ma
Am 14.07.21 um 16:54 schrieb Zheyu Ma:
When calling ttm_range_man_fini(), 'man' may be uninitialized, which may
cause a null pointer dereference bug.
Fix this by checking if it is a null pointer.
It would be better if the driver doesn't try to fini a manager which was
never initialized, but f
