of: fdt: add missing allocation-failure check

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commit 49e67dd176 upstream.

The memory allocator passed to __unflatten_device_tree() (e.g. a wrapped
kzalloc) can fail so add the missing sanity check to avoid dereferencing
a NULL pointer.

Fixes: fe14042358 ("of/flattree: Refactor unflatten_device_tree and add fdt_unflatten_tree")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Johan Hovold 2017-05-17 17:29:09 +02:00 • committed by Greg Kroah-Hartman

parent 80cdf2065b

commit 9907c838fc

1 changed files with 3 additions and 0 deletions

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drivers/of/fdt.c

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