Thread (4 messages) flat view 4 messages, 2 authors, 2021-12-27
STALE1732d

[PATCH v1] cpufreq: mediatek-hw: Fix double devm_remap in hotplug case

From: Hector Yuan <hidden>
Date: 2021-10-29 13:56:43
Also in: linux-arm-kernel, linux-mediatek, lkml

When hotpluging policy cpu, cpu policy init will be called multiple times.
Unplug CPU7 -> CPU6 -> CPU5 -> CPU4, then plug CPU4 again.
In this case, devm_remap will double remap and resource allocate fail.
So replace devm_remap to ioremap and release related resources in cpu exit.


Hector.Yuan (1):
  cpufreq: mediatek-hw: Fix double devm_remap in hotplug case

 drivers/cpufreq/mediatek-cpufreq-hw.c |   33 ++++++++++++++++++++++++++++++---
 1 file changed, 30 insertions(+), 3 deletions(-)
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