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

[ Upstream commit 11d827a993a969c3c6ec56758ff63a44ba19b466 ]

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@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/net/ethernet/freescale/gianfar_ptp.c b/drivers/net/ethernet/freescale/gianfar_ptp.c
index 57798814160dca157d9576448a04e06bfc183255..ec4b6997f24a1a4ba18da1fcd7dfb4a6be16ec54 100644 (file)
--- a/drivers/net/ethernet/freescale/gianfar_ptp.c
+++ b/drivers/net/ethernet/freescale/gianfar_ptp.c
@@ -314,11 +314,10 @@ 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;
 }