[BUG] vme_ca91cx42: a possible sleep-in-atomic bug in ca91cx42_master_set

[Jia-Ju Bai]

According to drivers/vme/bridges/vme_ca91cx42.c, the driver may sleep 
under a spinlock.
The function call path is:
ca91cx42_master_set (acquire the spinlock)
  ca91cx42_alloc_resource
    ioremap_nocache --> may sleep

I do not find a good way to fix it, so I only report.
This possible bug is found by my static analysis tool (DSAC) and checked 
by my code review.


Thanks,
Jia-Ju Bai