Commit 3a11ec54 authored Nov 09, 2018 by Ioana Ciornei Committed by Greg Kroah-Hartman Feb 12, 2019

dpaa2-ptp: defer probe when portal allocation failed



[ Upstream commit 5500598abbfb5b46201b9768bd9ea873a5eeaece ]

The fsl_mc_portal_allocate can fail when the requested MC portals are
not yet probed by the fsl_mc_allocator. In this situation, the driver
should defer the probe.

Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

parent 4ee24ae8

drivers/staging/fsl-dpaa2/rtc/rtc.c

+4 −1

Original line number	Diff line number	Diff line
		@@ -142,6 +142,9 @@ static int rtc_probe(struct fsl_mc_device *mc_dev)

		err = fsl_mc_portal_allocate(mc_dev, 0, &mc_dev->mc_io);
		if (err) {
		if (err == -ENXIO)
		err = -EPROBE_DEFER;
		else
		dev_err(dev, "fsl_mc_portal_allocate err %d\n", err);
		goto err_exit;
		}