X-Git-Url: http://git.cascardo.eti.br/?a=blobdiff_plain;f=drivers%2Finput%2Fmouse%2Felan_i2c_smbus.c;h=e23b2495d52e1558f2b6dc8ff7128550f0e9dae0;hb=d4e65476bc68dbc9231b3c772b71f1576579b6fb;hp=cb6aecbc1dc28a20885885c4b361ecf8343bc445;hpb=75777c1855e10c010c9c3a21611d95dd9be01ab1;p=cascardo%2Flinux.git

diff --git a/drivers/input/mouse/elan_i2c_smbus.c b/drivers/input/mouse/elan_i2c_smbus.c
index cb6aecbc1dc2..e23b2495d52e 100644
--- a/drivers/input/mouse/elan_i2c_smbus.c
+++ b/drivers/input/mouse/elan_i2c_smbus.c
@@ -222,11 +222,13 @@ static int elan_smbus_get_checksum(struct i2c_client *client,
 static int elan_smbus_get_max(struct i2c_client *client,
 			      unsigned int *max_x, unsigned int *max_y)
 {
+	int ret;
 	int error;
 	u8 val[3];
 
-	error = i2c_smbus_read_block_data(client, ETP_SMBUS_RANGE_CMD, val);
-	if (error) {
+	ret = i2c_smbus_read_block_data(client, ETP_SMBUS_RANGE_CMD, val);
+	if (ret != 3) {
+		error = ret < 0 ? ret : -EIO;
 		dev_err(&client->dev, "failed to get dimensions: %d\n", error);
 		return error;
 	}
@@ -240,12 +242,13 @@ static int elan_smbus_get_max(struct i2c_client *client,
 static int elan_smbus_get_resolution(struct i2c_client *client,
 				     u8 *hw_res_x, u8 *hw_res_y)
 {
+	int ret;
 	int error;
 	u8 val[3];
 
-	error = i2c_smbus_read_block_data(client,
-					  ETP_SMBUS_RESOLUTION_CMD, val);
-	if (error) {
+	ret = i2c_smbus_read_block_data(client, ETP_SMBUS_RESOLUTION_CMD, val);
+	if (ret != 3) {
+		error = ret < 0 ? ret : -EIO;
 		dev_err(&client->dev, "failed to get resolution: %d\n", error);
 		return error;
 	}
@@ -260,12 +263,13 @@ static int elan_smbus_get_num_traces(struct i2c_client *client,
 				     unsigned int *x_traces,
 				     unsigned int *y_traces)
 {
+	int ret;
 	int error;
 	u8 val[3];
 
-	error = i2c_smbus_read_block_data(client,
-					  ETP_SMBUS_XY_TRACENUM_CMD, val);
-	if (error) {
+	ret = i2c_smbus_read_block_data(client, ETP_SMBUS_XY_TRACENUM_CMD, val);
+	if (ret != 3) {
+		error = ret < 0 ? ret : -EIO;
 		dev_err(&client->dev, "failed to get trace info: %d\n", error);
 		return error;
 	}