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Revision 827108d08070c7515c14eb47e5fa03f59cfe38cf authored by Bradley Pankow on 23 February 2016, 01:11:47 UTC, committed by Alex Deucher on 24 February 2016, 17:46:05 UTC 
amdgpu: fix NULL pointer dereference at tonga_check_states_equal
 
The event_data passed from pem_fini was not cleared upon initialization.
This caused NULL checks to pass and cast_const_phw_tonga_power_state to
attempt to dereference an invalid pointer. Clear the event_data in
pem_init and pem_fini before calling pem_handle_event.

Reviewed-by:  Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Bradley Pankow <btpankow@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
1 parent 39d4275
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BUGS 
- Out-of-space may cause a severe problem if the object (and directory entry)
  were written, but the inode attributes failed. Then if the filesystem was
  unmounted and mounted the kernel can get into an endless loop doing a readdir.
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