* [BUG] vme_ca91cx42: a possible sleep-in-atomic bug in ca91cx42_master_set
@ 2017-12-12 12:36 Jia-Ju Bai
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From: Jia-Ju Bai @ 2017-12-12 12:36 UTC (permalink / raw)
To: martyn, manohar.vanga, gregkh, elfring, augustocaringi
Cc: devel, Linux Kernel Mailing List
According to drivers/vme/bridges/vme_ca91cx42.c, the driver may sleep
under a spinlock.
The function call path is:
ca91cx42_master_set (acquire the spinlock)
ca91cx42_alloc_resource
ioremap_nocache --> 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 12:36 [BUG] vme_ca91cx42: a possible sleep-in-atomic bug in ca91cx42_master_set Jia-Ju Bai
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