Commit 469d7d22 authored Jun 16, 2015 by Frodo Lai Committed by Dmitry Torokhov Jun 16, 2015

Input: pixcir_i2c_ts - fix receive error



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: 36874c7e ("Input: pixcir_i2c_ts - support up to 5 fingers and
hardware tracking IDs:)

Cc: stable@vger.kernel.org
Signed-off-by: Frodo Lai <frodo_lai@bcmcom.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

parent 7f2ca8b5

drivers/input/touchscreen/pixcir_i2c_ts.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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);