lan743x: remove redundant initialization of variable current_head_index

The variable current_head_index is being initialized with a value that
is never read and it is being updated later with a new value.  Replace
the initialization of -1 with the latter assignment.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/microchip/lan743x_main.c b/drivers/net/ethernet/microchip/lan743x_main.c
index f647938..de93cc6 100644 (file)
--- a/drivers/net/ethernet/microchip/lan743x_main.c
+++ b/drivers/net/ethernet/microchip/lan743x_main.c
@@ -2046,14 +2046,13 @@ static int lan743x_rx_process_packet(struct lan743x_rx *rx)
 {
        struct skb_shared_hwtstamps *hwtstamps = NULL;
        int result = RX_PROCESS_RESULT_NOTHING_TO_DO;
+       int current_head_index = *rx->head_cpu_ptr;
        struct lan743x_rx_buffer_info *buffer_info;
        struct lan743x_rx_descriptor *descriptor;
-       int current_head_index = -1;
        int extension_index = -1;
        int first_index = -1;
        int last_index = -1;
 
-       current_head_index = *rx->head_cpu_ptr;
        if (current_head_index < 0 || current_head_index >= rx->ring_size)
                goto done;