PCI: rcar: Fix a potential NULL pointer dereference

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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>

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Kangjie Lu 2019-03-15 02:29:43 -05:00 • committed by Lorenzo Pieralisi

parent 954b4b752a

commit f0d14edd2b

1 changed files with 4 additions and 0 deletions

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drivers/pci/controller/pcie-rcar.c

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