[PATCH] i2c: Rework client usage count, 1 of 3

No i2c client uses the I2C_CLIENT_ALLOW_MULTIPLE_USE flag, drop it.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/i2c/i2c-core.c

@@ -500,9 +500,7 @@ int i2c_use_client(struct i2c_client *client)
 		return ret;
 
 	if (client->flags & I2C_CLIENT_ALLOW_USE) {
-		if (client->flags & I2C_CLIENT_ALLOW_MULTIPLE_USE)
-			client->usage_count++;
-		else if (client->usage_count > 0) 
+		if (client->usage_count > 0)
 			goto busy;
 		else 
 			client->usage_count++;

include/linux/i2c.h

@@ -251,8 +251,6 @@ static inline void i2c_set_adapdata (struct i2c_adapter *dev, void *data)
 
 /*flags for the client struct: */
 #define I2C_CLIENT_ALLOW_USE		0x01	/* Client allows access */
-#define I2C_CLIENT_ALLOW_MULTIPLE_USE 	0x02  	/* Allow multiple access-locks */
-						/* on an i2c_client */
 #define I2C_CLIENT_PEC  0x04			/* Use Packet Error Checking */
 #define I2C_CLIENT_TEN	0x10			/* we have a ten bit chip address	*/
 						/* Must equal I2C_M_TEN below */