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| author | Ioana Ciornei | 2018-11-09 16:26:46 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2019-02-12 19:46:59 +0100 |
| commit | 3a11ec548c5b8d5c57cd249c9c2bae580f7fc29c (patch) | |
| tree | 3d88b698c251c18747c0332843204615166307c0 /drivers/staging/fsl-dpaa2 | |
| parent | MIPS: Boston: Disable EG20T prefetch (diff) | |
| download | kernel-qcow2-linux-3a11ec548c5b8d5c57cd249c9c2bae580f7fc29c.tar.gz kernel-qcow2-linux-3a11ec548c5b8d5c57cd249c9c2bae580f7fc29c.tar.xz kernel-qcow2-linux-3a11ec548c5b8d5c57cd249c9c2bae580f7fc29c.zip | |
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>
Diffstat (limited to 'drivers/staging/fsl-dpaa2')
| -rw-r--r-- | drivers/staging/fsl-dpaa2/rtc/rtc.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/staging/fsl-dpaa2/rtc/rtc.c b/drivers/staging/fsl-dpaa2/rtc/rtc.c index 0d52cb85441f..318a33c2f7a7 100644 --- a/drivers/staging/fsl-dpaa2/rtc/rtc.c +++ b/drivers/staging/fsl-dpaa2/rtc/rtc.c @@ -142,7 +142,10 @@ static int rtc_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; } |