From: Jia-Ju Bai <baijiaju1990@gmail.com>
To: kvalo@codeaurora.org, mhchen@golf.ccl.itri.org.tw,
acme@conectiva.com.br, niemeyer@conectiva.com
Cc: linux-wireless@vger.kernel.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [BUG] wl3501: a possible sleep-in-atomic bug in wl3501_reset
Date: Tue, 12 Dec 2017 17:04:52 +0800 [thread overview]
Message-ID: <8b0519f9-e5f3-aa73-09be-f399f6a6865a@gmail.com> (raw)
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
reply other threads:[~2017-12-12 9:05 UTC|newest]
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