PCI: rcar: Fix a potential NULL pointer dereference
[ Upstream commit f0d14edd ] In case __get_free_pages() fails and returns NULL, fix the return value to -ENOMEM and release resources to avoid dereferencing a NULL pointer. Signed-off-by:Kangjie Lu <kjlu@umn.edu> Signed-off-by:
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by:
Ulrich Hecht <uli+renesas@fpond.eu> Reviewed-by:
Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by:
Simon Horman <horms+renesas@verge.net.au> Signed-off-by:
Sasha Levin <sashal@kernel.org>
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