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powerpc/eeh: Fix possible null deref in eeh_dump_dev_log()
authorSam Bobroff <sbobroff@linux.ibm.com>
Wed, 12 Sep 2018 01:23:20 +0000 (11:23 +1000)
committerMichael Ellerman <mpe@ellerman.id.au>
Sat, 13 Oct 2018 11:21:25 +0000 (22:21 +1100)
commit3d9a937065b34e89d1913ddd5343651e868f5c0b
treea852ba37c93b0e5f3017ed297c65befd3f580151tree | snapshot
parenta50ee5c13ae4945119e42b2c2b4d5ac60e0ee528commit | diff
powerpc/eeh: Fix possible null deref in eeh_dump_dev_log()

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>
arch/powerpc/kernel/eeh.c diff | blob | history
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