ubiblock: null pointer dereference using scatterlist in work_queue

[Richard Weinberger]

----- Ursprüngliche Mail -----
> Von: "Stephan Wurm" <stephan.wurm at a-eberle.de>
> [   50.502309] 55nth call of ubi_ea_read_leb_sg
> [   64.939917] sgl[00000000] => 00000000: page_link=4025764322, offset=0,
> length=512

Hmm, blk_rq_map_sg() returns non-zero,  sg_nents() is also non-zero but the very first sg list entry is
not virtually mapped.


Thanks,
//richard