coresight: cti: Fix remove sysfs link error

coresight: cti: Fix remove sysfs link error

[ Upstream commit 1cce921bce7dcf6fef9bdfa4dcc9406383274408 ]

CTI code to remove sysfs link to other devices on shutdown, incorrectly
tries to remove a single ended link when these are all double ended. This
implementation leaves elements in the link info structure undefined which
results in a crash in recent tests for driver module unload.

This patch corrects the link removal code.

Fixes: 73274abb6557 ("coresight: cti: Add in sysfs links to other coresight devices")
Reported-by: Tingwei Zhang <tingwei@codeaurora.org>
Signed-off-by: Mike Leach <mike.leach@linaro.org>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20200928163513.70169-18-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>