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-rw-r--r--package/switch/src/switch-robo.c13
1 files changed, 9 insertions, 4 deletions
diff --git a/package/switch/src/switch-robo.c b/package/switch/src/switch-robo.c
index 656e69ff12..5b849cb33d 100644
--- a/package/switch/src/switch-robo.c
+++ b/package/switch/src/switch-robo.c
@@ -96,12 +96,15 @@ static int do_ioctl(int cmd)
static u16 mdio_read(__u16 phy_id, __u8 reg)
{
struct mii_ioctl_data *mii = if_mii(&robo.ifr);
+ int err;
+
mii->phy_id = phy_id;
mii->reg_num = reg;
- if (do_ioctl(SIOCGMIIREG) < 0) {
+ err = do_ioctl(SIOCGMIIREG);
+ if (err < 0) {
printk(KERN_ERR PFX
- "[%s:%d] SIOCGMIIREG failed!\n", __FILE__, __LINE__);
+ "[%s:%d] SIOCGMIIREG failed! err: %i\n", __FILE__, __LINE__, err);
return 0xffff;
}
@@ -112,14 +115,16 @@ static u16 mdio_read(__u16 phy_id, __u8 reg)
static void mdio_write(__u16 phy_id, __u8 reg, __u16 val)
{
struct mii_ioctl_data *mii = if_mii(&robo.ifr);
+ int err;
mii->phy_id = phy_id;
mii->reg_num = reg;
mii->val_in = val;
- if (do_ioctl(SIOCSMIIREG) < 0) {
+ err = do_ioctl(SIOCSMIIREG);
+ if (err < 0) {
printk(KERN_ERR PFX
- "[%s:%d] SIOCSMIIREG failed!\n", __FILE__, __LINE__);
+ "[%s:%d] SIOCSMIIREG failed! err: %i\n", __FILE__, __LINE__, err);
return;
}
}