* [BUG] atmel_ssc_dai: a possible sleep-in-atomic bug in atmel_ssc_shutdown
@ 2017-12-12 9:52 Jia-Ju Bai
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From: Jia-Ju Bai @ 2017-12-12 9:52 UTC (permalink / raw)
To: nicolas.ferre, lgirdwood, broonie, perex, tiwai,
alexandre.belloni, sedji.gaouaou
Cc: alsa-devel, linux-arm-kernel, linux-kernel
According to sound/soc/atmel/atmel_ssc_dai.c, the driver may sleep under
a spinlock.
The function call path is:
atmel_ssc_shutdown (acquire the spinlock)
free_irq --> 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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2017-12-12 9:52 [BUG] atmel_ssc_dai: a possible sleep-in-atomic bug in atmel_ssc_shutdown Jia-Ju Bai
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