diff mbox

Input: pixcir_i2c_ts - fix receive error

Message ID 1434484984-15418-1-git-send-email-frodo_lai@bcmcom.com (mailing list archive)
State New, archived
Headers show

Commit Message

Frodo Lai June 16, 2015, 8:03 p.m. UTC
The i2c_master_recv() uses readsize to receive data from i2c but
compares to size of rdbuf which is always 27. This would casue
problem when the max_fingers is not 5. Change the comparison value
to readsize instead.

Signed-off-by: Frodo Lai <frodo_lai@bcmcom.com>
---
 drivers/input/touchscreen/pixcir_i2c_ts.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Dmitry Torokhov June 16, 2015, 10:07 p.m. UTC | #1
On Tue, Jun 16, 2015 at 01:03:04PM -0700, Frodo Lai wrote:
> The i2c_master_recv() uses readsize to receive data from i2c but
> compares to size of rdbuf which is always 27. This would casue
> problem when the max_fingers is not 5. Change the comparison value
> to readsize instead.
> 
> Signed-off-by: Frodo Lai <frodo_lai@bcmcom.com>

Applied, thank you.

> ---
>  drivers/input/touchscreen/pixcir_i2c_ts.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/input/touchscreen/pixcir_i2c_ts.c b/drivers/input/touchscreen/pixcir_i2c_ts.c
> index 2c21071..8f3e243 100644
> --- a/drivers/input/touchscreen/pixcir_i2c_ts.c
> +++ b/drivers/input/touchscreen/pixcir_i2c_ts.c
> @@ -78,7 +78,7 @@ static void pixcir_ts_parse(struct pixcir_i2c_ts_data *tsdata,
>  	}
>  
>  	ret = i2c_master_recv(tsdata->client, rdbuf, readsize);
> -	if (ret != sizeof(rdbuf)) {
> +	if (ret != readsize) {
>  		dev_err(&tsdata->client->dev,
>  			"%s: i2c_master_recv failed(), ret=%d\n",
>  			__func__, ret);
> -- 
> 1.7.9.5
>
diff mbox

Patch

diff --git a/drivers/input/touchscreen/pixcir_i2c_ts.c b/drivers/input/touchscreen/pixcir_i2c_ts.c
index 2c21071..8f3e243 100644
--- a/drivers/input/touchscreen/pixcir_i2c_ts.c
+++ b/drivers/input/touchscreen/pixcir_i2c_ts.c
@@ -78,7 +78,7 @@  static void pixcir_ts_parse(struct pixcir_i2c_ts_data *tsdata,
 	}
 
 	ret = i2c_master_recv(tsdata->client, rdbuf, readsize);
-	if (ret != sizeof(rdbuf)) {
+	if (ret != readsize) {
 		dev_err(&tsdata->client->dev,
 			"%s: i2c_master_recv failed(), ret=%d\n",
 			__func__, ret);