mfd: Constify WM8994 write path

Allow const buffers to be passed in without type safety issues.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/drivers/mfd/wm8994-core.c b/drivers/mfd/wm8994-core.c
index 475bd50d5528..3f5b7cc85f1d 100644
--- a/drivers/mfd/wm8994-core.c
+++ b/drivers/mfd/wm8994-core.c
@@ -97,9 +97,9 @@ int wm8994_bulk_read(struct wm8994 *wm8994, unsigned short reg,
 EXPORT_SYMBOL_GPL(wm8994_bulk_read);
 
 static int wm8994_write(struct wm8994 *wm8994, unsigned short reg,
-                        int bytes, void *src)
+                        int bytes, const void *src)
 {
-        u16 *buf = src;
+        const u16 *buf = src;
         int i;
 
         BUG_ON(bytes % 2);
@@ -146,7 +146,7 @@ EXPORT_SYMBOL_GPL(wm8994_reg_write);
  * @buf: Buffer to write from.  Data must be big-endian formatted.
  */
 int wm8994_bulk_write(struct wm8994 *wm8994, unsigned short reg,
-                      int count, u16 *buf)
+                      int count, const u16 *buf)
 {
         int ret;
 
@@ -583,7 +583,7 @@ static int wm8994_i2c_read_device(struct wm8994 *wm8994, unsigned short reg,
 }
 
 static int wm8994_i2c_write_device(struct wm8994 *wm8994, unsigned short reg,
-                                   int bytes, void *src)
+                                   int bytes, const void *src)
 {
         struct i2c_client *i2c = wm8994->control_data;
         struct i2c_msg xfer[2];