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authorFrodo Lai <frodo.lai@gmail.com>2015-06-16 15:03:53 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-07-21 10:10:06 -0700
commit7890602ea4fa5793f5ecad24bcca0049fa7ca06d (patch)
tree0b9141c7a4419e9b95b629baa66de3691e7436c7
parentd389ad7c0e6c02efaa3fe7992efb2452022e4b63 (diff)
Input: pixcir_i2c_ts - fix receive error
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>
-rw-r--r--drivers/input/touchscreen/pixcir_i2c_ts.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/input/touchscreen/pixcir_i2c_ts.c b/drivers/input/touchscreen/pixcir_i2c_ts.c
index 2c2107147319..8f3e243a62bf 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);