Input: sur40 - suppress false uninitialized variable warning

We will never use packet_id before initializing it as we start with
"need_blobs == -1" and will set packet_id there.

Also use le32_to_cpu when fetching header->packet_id.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

diff --git a/drivers/input/touchscreen/sur40.c b/drivers/input/touchscreen/sur40.c
index cfd1b7e8c0014306f09d021756e158ffc67ec728..f1cb05148b46826c7075e238f24e530a6a32720c 100644 (file)
--- a/drivers/input/touchscreen/sur40.c
+++ b/drivers/input/touchscreen/sur40.c
@@ -251,7 +251,7 @@ static void sur40_poll(struct input_polled_dev *polldev)
        struct sur40_state *sur40 = polldev->private;
        struct input_dev *input = polldev->input;
        int result, bulk_read, need_blobs, packet_blobs, i;
-       u32 packet_id;
+       u32 uninitialized_var(packet_id);
 
        struct sur40_header *header = &sur40->bulk_in_buffer->header;
        struct sur40_blob *inblob = &sur40->bulk_in_buffer->blobs[0];
@@ -286,7 +286,7 @@ static void sur40_poll(struct input_polled_dev *polldev)
                if (need_blobs == -1) {
                        need_blobs = le16_to_cpu(header->count);
                        dev_dbg(sur40->dev, "need %d blobs\n", need_blobs);
-                       packet_id = header->packet_id;
+                       packet_id = le32_to_cpu(header->packet_id);
                }
 
                /*