coresight: cti: Fix bug clearing sysfs links on callback

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During module unload, a coresight driver module will call back into
the CTI driver to remove any links between the two devices.

The current code has 2 issues:-
1) in the CTI driver the matching code is matching to the wrong device
so misses all the links.
2) The callback is called too late in the unload process resulting in a
crash.

This fixes both the issues.

Fixes: 177af8285b ("coresight: cti: Enable CTI associated with devices")
Reported-by: Tingwei Zhang <tingwei@codeaurora.org>
Acked-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mike Leach <mike.leach@linaro.org>
Signed-off-by: Tingwei Zhang <tingwei@codeaurora.org>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20200928163513.70169-19-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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This commit is contained in:

Mike Leach 2020-09-28 10:35:06 -06:00 • committed by Greg Kroah-Hartman

parent 1cce921bce

commit cab280bf35

2 changed files with 3 additions and 3 deletions

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2

drivers/hwtracing/coresight/coresight-cti.c

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4

drivers/hwtracing/coresight/coresight.c

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