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of: reserved-memory: Bypass rmem initialization check for carveouts

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Pure carveouts (i.e. memory that is completely unmanaged by the
kernel) do not have any initialization routines associated
with them. So, ignore them when checking if a region has already
been initialized by the reserved memory framework.

Change-Id: Ied0db066a372751f40327460e583a81ad5b5429f
Signed-off-by: Isaac J. Manjarres <isaacm@codeaurora.org>
This commit is contained in:
Isaac J. Manjarres 2019-10-28 14:32:14 -07:00
commit e058371a0b
1 changed files with 6 additions and 1 deletions
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7
drivers/of/of_reserved_mem.c
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@ -404,6 +404,7 @@ bool of_reserved_mem_device_is_init(struct device *dev)
{
struct device_node *mem_dev_node;
struct rmem_assigned_device *rd;
struct reserved_mem *rmem;
bool ret = false;
if (!dev->of_node)
@ -413,7 +414,11 @@ bool of_reserved_mem_device_is_init(struct device *dev)
if (!mem_dev_node)
return true;
if (!of_device_is_available(mem_dev_node) || !__find_rmem(mem_dev_node))
if (!of_device_is_available(mem_dev_node))
goto exit;
rmem = __find_rmem(mem_dev_node);
if (!rmem || !rmem->ops)
goto exit;
of_node_put(mem_dev_node);