2 files changed, 4 insertions, 4 deletions

diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index 45e2cdf54736..a45155f799d4 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -916,7 +916,7 @@ s32 i2c_smbus_write_word_data(struct i2c_client *client, u8 command, u16 value)
 }
 
 s32 i2c_smbus_write_block_data(struct i2c_client *client, u8 command,
-                               u8 length, u8 *values)
+                               u8 length, const u8 *values)
 {
         union i2c_smbus_data data;
 
@@ -944,7 +944,7 @@ s32 i2c_smbus_read_i2c_block_data(struct i2c_client *client, u8 command, u8 *val
 }
 
 s32 i2c_smbus_write_i2c_block_data(struct i2c_client *client, u8 command,
-                                   u8 length, u8 *values)
+                                   u8 length, const u8 *values)
 {
         union i2c_smbus_data data;
 
diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index 0510430e00db..526ddc8eecfb 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -97,13 +97,13 @@ extern s32 i2c_smbus_write_word_data(struct i2c_client * client,
                                      u8 command, u16 value);
 extern s32 i2c_smbus_write_block_data(struct i2c_client * client,
                                       u8 command, u8 length,
-                                      u8 *values);
+                                      const u8 *values);
 /* Returns the number of read bytes */
 extern s32 i2c_smbus_read_i2c_block_data(struct i2c_client * client,
                                          u8 command, u8 *values);
 extern s32 i2c_smbus_write_i2c_block_data(struct i2c_client * client,
                                           u8 command, u8 length,
-                                          u8 *values);
+                                          const u8 *values);
 
 /*
  * A driver is capable of handling one or more physical devices present on