Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 4.1 65/65] Input: pixcir_i2c_ts - fix receive error | Date | Sun, 19 Jul 2015 12:08:24 -0700 |
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4.1-stable review patch. If anyone has any objections, please let me know.
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From: Frodo Lai <frodo.lai@gmail.com>
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@bcmcom.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- 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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