tree 6afb119a77c71d422df67e2e602dbb44852face5
parent 38ee03553f50a84b28def4c20d69beec2a7a7949
author Nicholas Mc Guire <hofrat@osadl.org> 1531387702 +0200
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1537943798 +0200

ARM: hisi: fix error handling and missing of_node_put

[ Upstream commit 9f30b5ae0585ca5234fe979294b8f897299dec99 ]

of_iomap() can return NULL which seems critical here and thus should be
explicitly flagged so that the cause of system halting can be understood.
As of_find_compatible_node() is returning a device node with refcount
incremented it must be explicitly decremented here.

Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Fixes: commit 7fda91e73155 ("ARM: hisi: enable smp for HiP01")
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>