From 5500598abbfb5b46201b9768bd9ea873a5eeaece Mon Sep 17 00:00:00 2001 From: Ioana Ciornei Date: Fri, 9 Nov 2018 15:26:46 +0000 Subject: dpaa2-ptp: defer probe when portal allocation failed 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 Signed-off-by: David S. Miller --- drivers/net/ethernet/freescale/dpaa2/dpaa2-ptp.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'drivers/net/ethernet/freescale/dpaa2/dpaa2-ptp.c') diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-ptp.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-ptp.c index 84b942b1eccc..9b150db3b510 100644 --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-ptp.c +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-ptp.c @@ -140,7 +140,10 @@ static int dpaa2_ptp_probe(struct fsl_mc_device *mc_dev) err = fsl_mc_portal_allocate(mc_dev, 0, &mc_dev->mc_io); if (err) { - dev_err(dev, "fsl_mc_portal_allocate err %d\n", err); + if (err == -ENXIO) + err = -EPROBE_DEFER; + else + dev_err(dev, "fsl_mc_portal_allocate err %d\n", err); goto err_exit; } -- cgit