[Intel-wired-lan] [PATCH iwl-next v4 3/3] ixgbe: Clarify the values of the returning status

[Jedrzej Jagielski]

Converting s32 functions to regular int in the previous patch of the series
caused triggering smatch warnings about missing error code.

New smatch warnings:
drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c:2884 ixgbe_get_lcd_t_x550em() warn: missing error code? 'status'
drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c:3130 ixgbe_enter_lplu_t_x550em() warn: missing error code? 'status'

Old smatch warnings:
drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c:2890 ixgbe_get_lcd_t_x550em() warn: missing error code? 'status'

Fix it by clearly stating returning error code as 0.

Reported-by: kernel test robot <lkp at intel.com>
Reported-by: Dan Carpenter <dan.carpenter at linaro.org>
Closes: https://lore.kernel.org/r/202401041701.6QKTsZmx-lkp@intel.com/
Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski at intel.com>
---
 drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c
index efce4b231493..bee1d2f554d3 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c
@@ -2883,17 +2883,17 @@ static int ixgbe_get_lcd_t_x550em(struct ixgbe_hw *hw,
 	/* If link partner advertised 1G, return 1G */
 	if (an_lp_status & IXGBE_AUTO_NEG_LP_1000BASE_CAP) {
 		*lcd_speed = IXGBE_LINK_SPEED_1GB_FULL;
-		return status;
+		return 0;
 	}
 
 	/* If 10G disabled for LPLU via NVM D10GMP, then return no valid LCD */
 	if ((hw->bus.lan_id && (word & NVM_INIT_CTRL_3_D10GMP_PORT1)) ||
 	    (word & NVM_INIT_CTRL_3_D10GMP_PORT0))
-		return status;
+		return 0;
 
 	/* Link partner not capable of lower speeds, return 10G */
 	*lcd_speed = IXGBE_LINK_SPEED_10GB_FULL;
-	return status;
+	return 0;
 }
 
 /**
@@ -3129,7 +3129,7 @@ static int ixgbe_enter_lplu_t_x550em(struct ixgbe_hw *hw)
 	     (lcd_speed == IXGBE_LINK_SPEED_1GB_FULL)) ||
 	    ((speed == IXGBE_MDIO_AUTO_NEG_VENDOR_STATUS_10GB) &&
 	     (lcd_speed == IXGBE_LINK_SPEED_10GB_FULL)))
-		return status;
+		return 0;
 
 	/* Clear AN completed indication */
 	status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_AUTO_NEG_VENDOR_TX_ALARM,
-- 
2.31.1