From: Heiner Kallweit <hkallweit1@gmail.com>
Date: Tue, 26 Feb 2019 18:29:22 +0000 (+0100)
Subject: net: phy: phylink: fix uninitialized variable in phylink_get_mac_state
X-Git-Tag: v5.0~4^2~7
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=d25ed413d5e51644e18f66e34eec049f17a7abcb;p=users%2Fjedix%2Flinux-maple.git

net: phy: phylink: fix uninitialized variable in phylink_get_mac_state

When debugging an issue I found implausible values in state->pause.
Reason in that state->pause isn't initialized and later only single
bits are changed. Also the struct itself isn't initialized in
phylink_resolve(). So better initialize state->pause and other
not yet initialized fields.

v2:
- use right function name in subject
v3:
- initialize additional fields

Fixes: 9525ae83959b ("phylink: add phylink infrastructure")
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c
index 938803237d7f..85987aac31c4 100644
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -320,6 +320,10 @@ static int phylink_get_mac_state(struct phylink *pl, struct phylink_link_state *
 	linkmode_zero(state->lp_advertising);
 	state->interface = pl->link_config.interface;
 	state->an_enabled = pl->link_config.an_enabled;
+	state->speed = SPEED_UNKNOWN;
+	state->duplex = DUPLEX_UNKNOWN;
+	state->pause = MLO_PAUSE_NONE;
+	state->an_complete = 0;
 	state->link = 1;
 
 	return pl->ops->mac_link_state(ndev, state);