[PATCH 5.6 023/118] net: dsa: Do not make user port errors fatal

From: Greg Kroah-Hartman
Date: Wed May 13 2020 - 05:52:20 EST


From: Florian Fainelli <f.fainelli@xxxxxxxxx>

[ Upstream commit 86f8b1c01a0a537a73d2996615133be63cdf75db ]

Prior to 1d27732f411d ("net: dsa: setup and teardown ports"), we would
not treat failures to set-up an user port as fatal, but after this
commit we would, which is a regression for some systems where interfaces
may be declared in the Device Tree, but the underlying hardware may not
be present (pluggable daughter cards for instance).

Fixes: 1d27732f411d ("net: dsa: setup and teardown ports")
Signed-off-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
Reviewed-by: Andrew Lunn <andrew@xxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
net/dsa/dsa2.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/net/dsa/dsa2.c
+++ b/net/dsa/dsa2.c
@@ -459,7 +459,7 @@ static int dsa_tree_setup_switches(struc
list_for_each_entry(dp, &dst->ports, list) {
err = dsa_port_setup(dp);
if (err)
- goto teardown;
+ continue;
}

return 0;