acpi/nfit: Fix race accessing memdev in nfit_get_smbios_id()

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Possible race accessing memdev structures after dropping the
mutex. Dan Williams says this could race against another thread
that is doing:

 # echo "ACPI0012:00" > /sys/bus/acpi/drivers/nfit/unbind

Reported-by: Jane Chu <jane.chu@oracle.com>
Fixes: 23222f8f8d ("acpi, nfit: Add function to look up nvdimm...")
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

...

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Tony Luck 2019-01-11 14:46:37 -08:00 • committed by Dan Williams

parent 1cb95e072e

commit 0919871ac3

1 changed files with 4 additions and 2 deletions

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6

drivers/acpi/nfit/core.c

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