openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

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 <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ioana Ciornei 2018-11-09 15:26:46 +00:00 committed by David S. Miller
parent d7f5a9d89a
commit 5500598abb
1 changed files with 4 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/net/ethernet/freescale/dpaa2/dpaa2-ptp.c
View File

@ -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;
}