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net: mscc: ocelot: fix mutex_lock not released

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If err is true, the function will be returned, but mutex_lock isn't
released.

Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Lv Ruyi <lv.ruyi@zte.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Lv Ruyi 2021-11-30 11:24:43 +00:00 committed by David S. Miller
parent c019087932
commit 9c32950f24
1 changed files with 3 additions and 1 deletions
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4
drivers/net/ethernet/mscc/ocelot.c
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@ -1651,8 +1651,10 @@ int ocelot_hwstamp_set(struct ocelot *ocelot, int port, struct ifreq *ifr)
}
err = ocelot_setup_ptp_traps(ocelot, port, l2, l4);
if (err)
if (err) {
mutex_unlock(&ocelot->ptp_lock);
return err;
}
if (l2 && l4)
cfg.rx_filter = HWTSTAMP_FILTER_PTP_V2_EVENT;