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net: mscc: ocelot: fix missing unlock on error in ocelot_hwstamp_set() 

Add the missing mutex_unlock before return from function
ocelot_hwstamp_set() in the ocelot_setup_ptp_traps() error
handling case.

Fixes: 96ca08c058 ("net: mscc: ocelot: set up traps for PTP packets")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://lore.kernel.org/r/20211129151652.1165433-1-weiyongjun1@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Wei Yongjun 2021-11-29 15:16:52 +00:00 committed by Jakub Kicinski
parent 5fdc2333e6
commit 1a59c9c555
1 changed files with 3 additions and 1 deletions
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4
drivers/net/ethernet/mscc/ocelot.c
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@ -1563,8 +1563,10 @@ 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;