According to drivers/usb/host/isp116x-hcd.c, the kernel module may sleep under a spinlock.
The function call path is:
isp116x_start (acquire the spinlock)
  device_init_wakeup
    device_wakeup_enable
      wakeup_source_register
        wakeup_source_create
          kmalloc(GFP_KERNEL) --> 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
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