soc: qcom: smsm: fix child-node lookup
authorJohan Hovold <johan@kernel.org>
Wed, 15 Nov 2017 11:07:24 +0000 (12:07 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 24 Mar 2018 10:01:27 +0000 (11:01 +0100)
commit6f4649f3bef8c3c4a8ad8b1048b8a59aaa46f88c
treef3cffe5d02051eea8cc584ec9d8de13c3e6832ea
parentf1f225794a417a39eba6601a22b920d3bbc8ed20
soc: qcom: smsm: fix child-node lookup

[ Upstream commit 8804517e9fc16c10081ff5e42e7d80704973a8e2 ]

Fix child-node lookup during probe, which ended up searching the whole
device tree depth-first starting at the parent rather than just matching
on its children.

Note that the original premature free of the parent node has already
been fixed separately.

Also note that this pattern of looking up the first child node with a
given property is rare enough that a generic helper is probably not
warranted.

Fixes: c97c4090ff72 ("soc: qcom: smsm: Add driver for Qualcomm SMSM")
Fixes: 3e8b55411468 ("soc: qcom: smsm: fix of_node refcnting problem")
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Rob Clark <robdclark@gmail.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/soc/qcom/smsm.c