lkml.org 
[lkml]   [2017]   [Dec]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Subject[BUG] haswell: a possible sleep-in-atomic bug in hsw_irq_thread
Date
According to sound/soc/intel/haswell/sst-haswell-ipc.c, the driver may 
sleep under a spinlock.
The function call path is:
hsw_irq_thread (acquire the spinlock)
hsw_process_notification
hsw_log_message
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

\
 
 \ /
  Last update: 2017-12-12 15:20    [W:0.153 / U:0.216 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site