diff options
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/staging/rtl8192u/r8180_93cx6.c | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/drivers/staging/rtl8192u/r8180_93cx6.c b/drivers/staging/rtl8192u/r8180_93cx6.c index 97d9b3f49114..2c53132e79cf 100644 --- a/drivers/staging/rtl8192u/r8180_93cx6.c +++ b/drivers/staging/rtl8192u/r8180_93cx6.c @@ -23,8 +23,11 @@ static void eprom_cs(struct net_device *dev, short bit) { u8 cmdreg; + int err; - read_nic_byte_E(dev, EPROM_CMD, &cmdreg); + err = read_nic_byte_E(dev, EPROM_CMD, &cmdreg); + if (err) + return; if (bit) /* enable EPROM */ write_nic_byte_E(dev, EPROM_CMD, cmdreg | EPROM_CS_BIT); @@ -40,8 +43,11 @@ static void eprom_cs(struct net_device *dev, short bit) static void eprom_ck_cycle(struct net_device *dev) { u8 cmdreg; + int err; - read_nic_byte_E(dev, EPROM_CMD, &cmdreg); + err = read_nic_byte_E(dev, EPROM_CMD, &cmdreg); + if (err) + return; write_nic_byte_E(dev, EPROM_CMD, cmdreg | EPROM_CK_BIT); force_pci_posting(dev); udelay(EPROM_DELAY); @@ -56,8 +62,11 @@ static void eprom_ck_cycle(struct net_device *dev) static void eprom_w(struct net_device *dev, short bit) { u8 cmdreg; + int err; - read_nic_byte_E(dev, EPROM_CMD, &cmdreg); + err = read_nic_byte_E(dev, EPROM_CMD, &cmdreg); + if (err) + return; if (bit) write_nic_byte_E(dev, EPROM_CMD, cmdreg | EPROM_W_BIT); else @@ -71,8 +80,12 @@ static void eprom_w(struct net_device *dev, short bit) static short eprom_r(struct net_device *dev) { u8 bit; + int err; + + err = read_nic_byte_E(dev, EPROM_CMD, &bit); + if (err) + return err; - read_nic_byte_E(dev, EPROM_CMD, &bit); udelay(EPROM_DELAY); if (bit & EPROM_R_BIT) |