[PATCH 0/1][SRU][Cosmic][Bionic] Fix potential memory corruption on arm64 on dev release

[dann frazier]

BugLink: https://bugs.launchpad.net/bugs/1827437

While bionic & cosmic aren't susceptible to the crash described in the
commit log, there is a potential for memory corruption. This is a
trivial backport of the fix from the 4.19.29 stable release. Regression
tested on a HiSilicon D06 (arm64) by removing the hisi_sas_v3_hw driver
from a ramdisk (in the 5.0 kernel, this would trigger the crash described
in the commit message). Since this is generic code, also regression tested
in an x86 VM by removing/inserting the 8139 nic driver several times.

Geert Uytterhoeven (1):
  driver core: Postpone DMA tear-down until after devres release

 drivers/base/dd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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2.20.1