powerpc/eeh: Fix possible null deref in eeh_dump_dev_log()

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[ Upstream commit f9bc28aedf ]

If an error occurs during an unplug operation, it's possible for
eeh_dump_dev_log() to be called when edev->pdn is null, which
currently leads to dereferencing a null pointer.

Handle this by skipping the error log for those devices.

Signed-off-by: Sam Bobroff <sbobroff@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Sam Bobroff 2018-09-12 11:23:20 +10:00 • committed by Greg Kroah-Hartman

parent 32f2674c7c

commit 234bee8bb3

1 changed files with 5 additions and 0 deletions

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arch/powerpc/kernel/eeh.c

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