Revert "Input: zforce - don't overwrite the stack"
This reverts commit 7d01cd261c76f95913c81554a751968a1d282d3a because
with given FRAME_MAXSIZE of 257 the check will never trigger and it
causes warnings from GCC (with -Wtype-limits). Also the check was
incorrect as it was not accounting for the already read 2 bytes of data
stored in the buffer.
diff --git a/drivers/input/touchscreen/zforce_ts.c b/drivers/input/touchscreen/zforce_ts.c
index 80285c7..f58a196 100644
--- a/drivers/input/touchscreen/zforce_ts.c
+++ b/drivers/input/touchscreen/zforce_ts.c
@@ -429,7 +429,7 @@
goto unlock;
}
- if (buf[PAYLOAD_LENGTH] == 0 || buf[PAYLOAD_LENGTH] > FRAME_MAXSIZE) {
+ if (buf[PAYLOAD_LENGTH] == 0) {
dev_err(&client->dev, "invalid payload length: %d\n",
buf[PAYLOAD_LENGTH]);
ret = -EIO;