From: Krishna Reddy <vdumpa@nvidia.com>
Date: Wed, 22 May 2019 10:47:11 +0000 (+0530)
Subject: of: reserved-memory: ignore disabled memory-region nodes
X-Git-Tag: v5.4-rc1~598^2~54
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=d698a388146c5ba72e7cf7e79f13932f2046bf29;p=platform%2Fkernel%2Flinux-rpi.git

of: reserved-memory: ignore disabled memory-region nodes

Ignore disabled nodes in the memory-region
nodes list and continue to initialize the rest
of enabled nodes.

Check if the "reserved-memory" node is available
and if it's not available, return 0 to ignore the
"reserved-memory" node and continue parsing with
next node in memory-region nodes list.

Signed-off-by: Krishna Reddy <vdumpa@nvidia.com>
Signed-off-by: Puneet Saxena <puneets@nvidia.com>
Signed-off-by: Rob Herring <robh@kernel.org>
---

diff --git a/drivers/of/of_reserved_mem.c b/drivers/of/of_reserved_mem.c
index 89e190e..7989703 100644
--- a/drivers/of/of_reserved_mem.c
+++ b/drivers/of/of_reserved_mem.c
@@ -324,6 +324,9 @@ int of_reserved_mem_device_init_by_idx(struct device *dev,
 	if (!target)
 		return -ENODEV;
 
+	if (!of_device_is_available(target))
+		return 0;
+
 	rmem = __find_rmem(target);
 	of_node_put(target);