net: phy: micrel: Fix incorrect variable type in micrel

In lanphy_read_page_reg, calling __phy_read() might return a negative
error code. Use 'int' to check the error code.

Fixes: 7c2dcfa295b1 ("net: phy: micrel: Add support for LAN8804 PHY")
Signed-off-by: Wan Jiabing <wanjiabing@vivo.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20220509144519.2343399-1-wanjiabing@vivo.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c
index 9d7dafe..cd9aa35 100644 (file)
--- a/drivers/net/phy/micrel.c
+++ b/drivers/net/phy/micrel.c
@@ -1743,7 +1743,7 @@ static int ksz886x_cable_test_get_status(struct phy_device *phydev,
 
 static int lanphy_read_page_reg(struct phy_device *phydev, int page, u32 addr)
 {
-       u32 data;
+       int data;
 
        phy_lock_mdio_bus(phydev);
        __phy_write(phydev, LAN_EXT_PAGE_ACCESS_CONTROL, page);
@@ -2444,8 +2444,7 @@ static int lan8804_config_init(struct phy_device *phydev)
 
 static irqreturn_t lan8814_handle_interrupt(struct phy_device *phydev)
 {
-       u16 tsu_irq_status;
-       int irq_status;
+       int irq_status, tsu_irq_status;
 
        irq_status = phy_read(phydev, LAN8814_INTS);
        if (irq_status > 0 && (irq_status & LAN8814_INT_LINK))