From 601f574a1b449446a98d65cc3871a8eb2cb18bcf Mon Sep 17 00:00:00 2001 From: Jerry Ray Date: Tue, 17 Jan 2023 14:56:59 -0600 Subject: [PATCH] dsa: lan9303: Add exception logic for read failure While it is highly unlikely a read will ever fail, This code fragment is now in a function that allows us to return an error code. A read failure here will cause the lan9303_probe to fail. Signed-off-by: Jerry Ray Signed-off-by: David S. Miller --- drivers/net/dsa/lan9303-core.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/dsa/lan9303-core.c b/drivers/net/dsa/lan9303-core.c index 63f5c1ef65e2..66466d50d015 100644 --- a/drivers/net/dsa/lan9303-core.c +++ b/drivers/net/dsa/lan9303-core.c @@ -911,7 +911,9 @@ static int lan9303_setup(struct dsa_switch *ds) } /* Virtual Phy: Remove Turbo 200Mbit mode */ - lan9303_read(chip->regmap, LAN9303_VIRT_SPECIAL_CTRL, ®); + ret = lan9303_read(chip->regmap, LAN9303_VIRT_SPECIAL_CTRL, ®); + if (ret) + return (ret); reg &= ~LAN9303_VIRT_SPECIAL_TURBO; regmap_write(chip->regmap, LAN9303_VIRT_SPECIAL_CTRL, reg); -- 2.11.0