On Fri, Aug 06, 2010 at 08:30:06AM +0200, Dan Carpenter wrote:
> "ret" should be signed here or the error handling doesn't work.
>
> Signed-off-by: Dan Carpenter <error27@xxxxxxxxx>
>
> diff --git a/drivers/input/touchscreen/cy8ctmg110_ts.c b/drivers/input/touchscreen/cy8ctmg110_ts.c
> index 4eb7df0..f4e893f 100644
> --- a/drivers/input/touchscreen/cy8ctmg110_ts.c
> +++ b/drivers/input/touchscreen/cy8ctmg110_ts.c
> @@ -96,7 +96,7 @@ static int cy8ctmg110_read_regs(struct cy8ctmg110 *tsc,
> unsigned char *data, unsigned char len, unsigned char cmd)
> {
> struct i2c_client *client = tsc->client;
> - unsigned int ret;
> + int ret;
> struct i2c_msg msg[2] = {
> /* first write slave position to i2c devices */
> { client->addr, 0, 1, &cmd },
Thanks Dan. It looks like cy8ctmg110_write_regs has siilar issue. Do you
thiks the following will work?
Thanks.
--
Dmitry
Input: cy8ctmg100_ts - signedness bug
From: Dan Carpenter <error27@xxxxxxxxx>
"ret" should be signed here or the error handling doesn't work.
Signed-off-by: Dan Carpenter <error27@xxxxxxxxx>
Signed-off-by: Dmitry Torokhov <dtor@xxxxxxx>
---
drivers/input/touchscreen/cy8ctmg110_ts.c | 6 +++---
1 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/input/touchscreen/cy8ctmg110_ts.c b/drivers/input/touchscreen/cy8ctmg110_ts.c
index 4eb7df0..5ec0946 100644
--- a/drivers/input/touchscreen/cy8ctmg110_ts.c
+++ b/drivers/input/touchscreen/cy8ctmg110_ts.c
@@ -75,7 +75,7 @@ static int cy8ctmg110_write_regs(struct cy8ctmg110 *tsc, unsigned char reg,
unsigned char len, unsigned char *value)
{
struct i2c_client *client = tsc->client;
- unsigned int ret;
+ int ret;
unsigned char i2c_data[6];
BUG_ON(len > 5);
@@ -86,7 +86,7 @@ static int cy8ctmg110_write_regs(struct cy8ctmg110 *tsc, unsigned char reg,
ret = i2c_master_send(client, i2c_data, len + 1);
if (ret != 1) {
dev_err(&client->dev, "i2c write data cmd failed\n");
- return ret;
+ return ret ? ret : -EIO;
}
return 0;
@@ -96,7 +96,7 @@ static int cy8ctmg110_read_regs(struct cy8ctmg110 *tsc,
unsigned char *data, unsigned char len, unsigned char cmd)
{
struct i2c_client *client = tsc->client;
- unsigned int ret;
+ int ret;
struct i2c_msg msg[2] = {
/* first write slave position to i2c devices */
{ client->addr, 0, 1, &cmd },
--
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