According to device_main.c, the driver may sleep under a spinlock,
and the function call path is:
vt6655_suspend (acquire the spinlock)
pci_set_power_state
__pci_start_power_transition (drivers/pci/pci.c)
msleep --> may sleep
A possible fix is to replace msleep with mdelay in
__pci_start_power_transition in drivers/pci/pci.c.
This bug is found by my static analysis tool and my code review.
Thanks,
Jia-Ju Bai
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