[PATCH] net: tap: remove redundant assignments

[Tang Bin]

In the function tap_get_user, the assignment of 'err' at both places
is redundant, so remove one.

Signed-off-by: Tang Bin <tang...@cmss.chinamobile.com>
---
 drivers/net/tap.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/net/tap.c b/drivers/net/tap.c
index 1f4bdd944..3e9c72738 100644
--- a/drivers/net/tap.c
+++ b/drivers/net/tap.c
@@ -625,7 +625,7 @@ static ssize_t tap_get_user(struct tap_queue *q, void 
*msg_control,
        struct tap_dev *tap;
        unsigned long total_len = iov_iter_count(from);
        unsigned long len = total_len;
-       int err;
+       int err = -EINVAL;
        struct virtio_net_hdr vnet_hdr = { 0 };
        int vnet_hdr_len = 0;
        int copylen = 0;
@@ -636,7 +636,6 @@ static ssize_t tap_get_user(struct tap_queue *q, void 
*msg_control,
        if (q->flags & IFF_VNET_HDR) {
                vnet_hdr_len = READ_ONCE(q->vnet_hdr_sz);
 
-               err = -EINVAL;
                if (len < vnet_hdr_len)
                        goto err;
                len -= vnet_hdr_len;
@@ -657,7 +656,6 @@ static ssize_t tap_get_user(struct tap_queue *q, void 
*msg_control,
                        goto err;
        }
 
-       err = -EINVAL;
        if (unlikely(len < ETH_HLEN))
                goto err;
 
-- 
2.20.1.windows.1