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(parent: 2475a2b) | patch
powerpc/powernv: Add sanity checks to pnv_pci_get_{gpu|npu}_dev
authorAlistair Popple <alistair@popple.id.au>
Mon, 3 Apr 2017 09:51:43 +0000 (19:51 +1000)
committerMichael Ellerman <mpe@ellerman.id.au>
Mon, 3 Apr 2017 13:36:00 +0000 (23:36 +1000)
commit4c3b89effc281704d5395282c800c45e453235f6
tree080556b55fad008b4111755f12a41fbff31f6c5atree | snapshot
parent2475a2b6c877a0c8d1ca42c3f2b30f8ce518ac0bcommit | diff
powerpc/powernv: Add sanity checks to pnv_pci_get_{gpu|npu}_dev

The pnv_pci_get_{gpu|npu}_dev functions are used to find associations
between nvlink PCIe devices and standard PCIe devices. However they
lacked basic sanity checking which results in NULL pointer
dereferencing if they are incorrect called can be harder to spot than
an explicit WARN_ON.

Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
arch/powerpc/platforms/powernv/npu-dma.c diff | blob | history
John Crispins staging tree