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ptp_qoriq: fix NULL access if ptp dt node missing

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Make sure ptp dt node exists before accessing it in case
of NULL pointer call trace.

Signed-off-by: Claudiu Manoil <[email protected]>
Signed-off-by: Yangbo Lu <[email protected]>
Acked-by: Richard Cochran <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Claudiu Manoil 2019-05-09 03:07:12 +00:00 • committed by David S. Miller
commit 7f4399ba40
1 changed files with 3 additions and 0 deletions
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3
drivers/ptp/ptp_qoriq.c
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@ -467,6 +467,9 @@ int ptp_qoriq_init(struct ptp_qoriq *ptp_qoriq, void __iomem *base,
unsigned long flags;
u32 tmr_ctrl;
if (!node)
return -ENODEV;
ptp_qoriq->base = base;
ptp_qoriq->caps = *caps;