diff options
Diffstat (limited to 'drivers/staging/media/go7007/go7007-i2c.c')
| -rw-r--r-- | drivers/staging/media/go7007/go7007-i2c.c | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/drivers/staging/media/go7007/go7007-i2c.c b/drivers/staging/media/go7007/go7007-i2c.c index 39456a36b2c6..74f25e03c326 100644 --- a/drivers/staging/media/go7007/go7007-i2c.c +++ b/drivers/staging/media/go7007/go7007-i2c.c @@ -28,7 +28,6 @@ #include <linux/uaccess.h> #include "go7007-priv.h" -#include "wis-i2c.h" /********************* Driver for on-board I2C adapter *********************/ @@ -52,11 +51,11 @@ static DEFINE_MUTEX(adlink_mpg24_i2c_lock); static int go7007_i2c_xfer(struct go7007 *go, u16 addr, int read, u16 command, int flags, u8 *data) { - int i, ret = -1; + int i, ret = -EIO; u16 val; if (go->status == STATUS_SHUTDOWN) - return -1; + return -ENODEV; #ifdef GO7007_I2C_DEBUG if (read) @@ -146,7 +145,7 @@ static int go7007_smbus_xfer(struct i2c_adapter *adapter, u16 addr, struct go7007 *go = i2c_get_adapdata(adapter); if (size != I2C_SMBUS_BYTE_DATA) - return -1; + return -EIO; return go7007_i2c_xfer(go, addr, read_write == I2C_SMBUS_READ, command, flags & I2C_CLIENT_SCCB ? 0x10 : 0x00, &data->byte); } @@ -170,26 +169,26 @@ static int go7007_i2c_master_xfer(struct i2c_adapter *adapter, (msgs[i].flags & I2C_M_RD) || !(msgs[i + 1].flags & I2C_M_RD) || msgs[i + 1].len != 1) - return -1; + return -EIO; if (go7007_i2c_xfer(go, msgs[i].addr, 1, (msgs[i].buf[0] << 8) | msgs[i].buf[1], 0x01, &msgs[i + 1].buf[0]) < 0) - return -1; + return -EIO; ++i; } else if (msgs[i].len == 3) { if (msgs[i].flags & I2C_M_RD) - return -1; + return -EIO; if (msgs[i].len != 3) - return -1; + return -EIO; if (go7007_i2c_xfer(go, msgs[i].addr, 0, (msgs[i].buf[0] << 8) | msgs[i].buf[1], 0x01, &msgs[i].buf[2]) < 0) - return -1; + return -EIO; } else - return -1; + return -EIO; } - return 0; + return num; } static u32 go7007_functionality(struct i2c_adapter *adapter) |