* [BUG] drivers/scsi/dpt_i2o: a possible sleep-in-atomic bug in adpt_isr
@ 2017-12-12 1:57 Jia-Ju Bai
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From: Jia-Ju Bai @ 2017-12-12 1:57 UTC (permalink / raw)
To: aacraid, jejb, martin.petersen; +Cc: linux-scsi, linux-kernel
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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2017-12-12 1:57 [BUG] drivers/scsi/dpt_i2o: a possible sleep-in-atomic bug in adpt_isr Jia-Ju Bai
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