4.0-stable review patch. If anyone has any objections, please let me know.
------------------
From: Frodo Lai <frodo.lai@xxxxxxxxx>
commit 469d7d22cea146e40efe8c330e5164b4d8f13934 upstream.
The i2c_master_recv() uses readsize to receive data from i2c but compares
to size of rdbuf which is always 27. This would cause problem when the
max_fingers is not 5. Change the comparison value to readsize instead.
Fixes: 36874c7e219 ("Input: pixcir_i2c_ts - support up to 5 fingers and
hardware tracking IDs:)
Signed-off-by: Frodo Lai <frodo_lai@xxxxxxxxxx>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/input/touchscreen/pixcir_i2c_ts.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- 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 pixci
}
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);
--
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