The driver may sleep in the interrupt handler.
The function call path is:
esas2r_adapter_tasklet (interrupt handler)
esas2r_do_tasklet_tasks
esas2r_handle_chip_rst_during_tasklet
esas2r_init_adapter_hw
esas2r_nvram_read_direct
down_interruptible --> 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