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Date: Tue, 12 Dec 2017 09:57:48 +0800
From: Jia-Ju Bai <baijiaju1990@...il.com>
To: aacraid@...ptec.com, jejb@...ux.vnet.ibm.com,
martin.petersen@...cle.com
Cc: linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [BUG] drivers/scsi/dpt_i2o: a possible sleep-in-atomic bug in
adpt_isr
According to drivers/scsi/dpt_i2o.c, the kernel module may sleep in the
interrupt handler.
The function call path is:
adpt_isr (interrupt handler)
adpt_send_nop
schedule_timeout_uninterruptible --> may sleep
A possible fixing is to replace "schedule_timeout_uninterruptible" with
"mdelay".
If this fixing is correct, I can send a patch.
This possible is found by my static analysis tool (DSAC) and checked by
my code review.
Thanks,
Jia-Ju Bai
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