This is harmless because the function is not called, but we're trying to
return negative error codes so the function needs to return an int
instead of a u16.
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
diff --git a/include/linux/mfd/wm8400-private.h b/include/linux/mfd/wm8400-private.h
index 2de565b..53b2021 100644
--- a/include/linux/mfd/wm8400-private.h
+++ b/include/linux/mfd/wm8400-private.h
@@ -923,7 +923,7 @@ struct wm8400 {
#define WM8400_LINE_CMP_VTHD_SHIFT 0 /* LINE_CMP_VTHD - [3:0] */
#define WM8400_LINE_CMP_VTHD_WIDTH 4 /* LINE_CMP_VTHD - [3:0] */
-u16 wm8400_reg_read(struct wm8400 *wm8400, u8 reg);
+int wm8400_reg_read(struct wm8400 *wm8400, u8 reg);
int wm8400_block_read(struct wm8400 *wm8400, u8 reg, int count, u16 *data);
static inline int wm8400_set_bits(struct wm8400 *wm8400, u8 reg,
diff --git a/drivers/mfd/wm8400-core.c b/drivers/mfd/wm8400-core.c
index 3bd44a4..8fe2aa9 100644
--- a/drivers/mfd/wm8400-core.c
+++ b/drivers/mfd/wm8400-core.c
@@ -43,7 +43,7 @@ static bool wm8400_volatile(struct device *dev, unsigned int reg)
*
* @return Read value
*/
-u16 wm8400_reg_read(struct wm8400 *wm8400, u8 reg)
+int wm8400_reg_read(struct wm8400 *wm8400, u8 reg)
{
unsigned int val;
int ret;
--
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