[BUG] drivers/scsi/wd719x: a possible sleep-in-atomic bug in wd719x_host_reset

From: Jia-Ju Bai
Date: Mon Dec 11 2017 - 22:11:31 EST

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According to drivers/scsi/wd719x.c, the kernel module may sleep under a spinlock.
The function call path is:
wd719x_host_reset (acquire the spinlock)
wd719x_chip_init
request_firmware --> 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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Previous message: Joe Perches: "Re: [PATCH 00/13] replace print_symbol() with printk()-s"
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