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net: gianfar_ptp: move set_fipers() to spinlock protecting area

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[ Upstream commit 11d827a993 ]

set_fipers() calling should be protected by spinlock in
case that any interrupt breaks related registers setting
and the function we expect. This patch is to move set_fipers()
to spinlock protecting area in ptp_gianfar_adjtime().

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Yangbo Lu 2018-01-09 11:02:33 +08:00 committed by Greg Kroah-Hartman
parent 00c840f3b5
commit 83d9e9c211
1 changed files with 1 additions and 2 deletions
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3
drivers/net/ethernet/freescale/gianfar_ptp.c
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@ -319,11 +319,10 @@ static int ptp_gianfar_adjtime(struct ptp_clock_info *ptp, s64 delta)
now = tmr_cnt_read(etsects);
now += delta;
tmr_cnt_write(etsects, now);
set_fipers(etsects);
spin_unlock_irqrestore(&etsects->lock, flags);
set_fipers(etsects);
return 0;
}