diff options
| author | Volodymyr Bendiuga <volodymyr.bendiuga@gmail.com> | 2017-01-05 11:10:13 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-01-05 11:39:53 -0500 |
| commit | 5e6eb456983c994a8e582127a300b6552e5a1768 (patch) | |
| tree | 1f6035af46acee5fd57c272f5d56b199ac497c64 | |
| parent | 56b46b4378f08fe519398df4da14ea2e7c9ae52c (diff) | |
| download | linux-5e6eb456983c994a8e582127a300b6552e5a1768.tar.gz | |
net:dsa: check for EPROBE_DEFER from dsa_dst_parse()
Since there can be multiple dsa switches stacked together but
not all of devicetree nodes available at the time of calling
dsa_dst_parse(), EPROBE_DEFER can be returned by it. When this
happens, only the last dsa switch has to be deleted by
dsa_dst_del_ds(), but not the whole list, because next time linux
cames back to this function it will try to add only the last dsa
switch which returned EPROBE_DEFER.
Signed-off-by: Volodymyr Bendiuga <volodymyr.bendiuga@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/dsa/dsa2.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/net/dsa/dsa2.c b/net/dsa/dsa2.c index 5fff951a0a49..bad119cee2a3 100644 --- a/net/dsa/dsa2.c +++ b/net/dsa/dsa2.c @@ -647,8 +647,14 @@ static int _dsa_register_switch(struct dsa_switch *ds, struct device_node *np) } err = dsa_dst_parse(dst); - if (err) + if (err) { + if (err == -EPROBE_DEFER) { + dsa_dst_del_ds(dst, ds, ds->index); + return err; + } + goto out_del_dst; + } err = dsa_dst_apply(dst); if (err) { |