Commit 601f574a authored by Jerry Ray's avatar Jerry Ray Committed by David S. Miller
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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: default avatarJerry Ray <jerry.ray@microchip.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 1bcb5df8

drivers/net/dsa/lan9303-core.c

+3 −1
Original line number Diff line number Diff line
@@ -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, &reg);

	ret = lan9303_read(chip->regmap, LAN9303_VIRT_SPECIAL_CTRL, &reg);

	if (ret)

		return (ret);



	reg &= ~LAN9303_VIRT_SPECIAL_TURBO;

	regmap_write(chip->regmap, LAN9303_VIRT_SPECIAL_CTRL, reg);