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Date: Tue, 12 Dec 2017 17:04:52 +0800
From: Jia-Ju Bai <baijiaju1990@...il.com>
To: kvalo@...eaurora.org, mhchen@...f.ccl.itri.org.tw,
acme@...ectiva.com.br, niemeyer@...ectiva.com
Cc: linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [BUG] wl3501: a possible sleep-in-atomic bug in wl3501_reset
According to drivers/net/wireless/wl3501_cs.c, the driver may sleep
under a spinlock.
The function call path is:
wl3501_reset (acquire the spinlock)
free_irq --> 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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