From: Jia-Ju Bai <baijiaju1990@gmail.com>
To: jejb@linux.vnet.ibm.com, martin.petersen@oracle.com,
Juergen.Gaertner@mbox.si.uni-hannover.de, dewell@woods.net
Cc: linux-scsi@vger.kernel.org,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: [BUG] drivers/scsi/wd719x: a possible sleep-in-atomic bug in wd719x_host_reset
Date: Tue, 12 Dec 2017 11:11:14 +0800 [thread overview]
Message-ID: <515a0c3b-044f-7d83-1506-18c77e3c05e6@gmail.com> (raw)
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
reply other threads:[~2017-12-12 3:11 UTC|newest]
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