Add an error trace in ov5640_read_reg() in case of i2c_transfer()
failure.
Signed-off-by: Hugues Fruchet <hugues.fruchet@xxxxxx>
---
drivers/media/i2c/ov5640.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/media/i2c/ov5640.c b/drivers/media/i2c/ov5640.c
index 99a5902..882a7c3 100644
--- a/drivers/media/i2c/ov5640.c
+++ b/drivers/media/i2c/ov5640.c
@@ -868,8 +868,11 @@ static int ov5640_read_reg(struct ov5640_dev *sensor, u16 reg, u8 *val)
msg[1].len = 1;
ret = i2c_transfer(client->adapter, msg, 2);
- if (ret < 0)
+ if (ret < 0) {
+ v4l2_err(&sensor->sd, "%s: error: reg=%x\n",
+ __func__, reg);
return ret;
+ }
*val = buf[0];
return 0;
--
1.9.1
