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Date: Tue, 12 Dec 2017 16:32:01 +0800
From: Jia-Ju Bai <baijiaju1990@...il.com>
To: dmitry.torokhov@...il.com, ilya.muromec@...il.com
Cc: linux-input@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [BUG] drivers/input/misc/pcap: a possible sleep-in-atomic bug in
pcap_keys_handler
According to drivers/input/misc/pcap_keys.c, the kernel module may sleep
in the interrupt handler.
The function call path is:
pcap_keys_handler (interrupt handler)
ezx_pcap_read
mutex_lock --> 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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