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authorColin Ian King <colin.king@canonical.com>2017-06-05 10:04:52 +0100
committerDavid S. Miller <davem@davemloft.net>2017-06-06 15:13:46 -0400
commit594238158bf748c285f0a73222cd9b7ccf3c525d (patch)
tree0fc2e20e8b26f80277c1914f929e5e3ee63746e9
parent7b868fed00f6c72d3e0270bcb057b4f26c09e809 (diff)
downloadclk-594238158bf748c285f0a73222cd9b7ccf3c525d.tar.gz
net: stmmac: ensure jumbo_frm error return is correctly checked for -ve value
The current comparison of entry < 0 will never be true since entry is an unsigned integer. Make entry an int to ensure -ve error return values from the call to jumbo_frm are correctly being caught. Detected by CoverityScan, CID#1238760 ("Macro compares unsigned to 0") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--drivers/net/ethernet/stmicro/stmmac/stmmac_main.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index a74c481401c46e..e5515c521d8667 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -2947,7 +2947,8 @@ static netdev_tx_t stmmac_xmit(struct sk_buff *skb, struct net_device *dev)
int i, csum_insertion = 0, is_jumbo = 0;
u32 queue = skb_get_queue_mapping(skb);
int nfrags = skb_shinfo(skb)->nr_frags;
- unsigned int entry, first_entry;
+ int entry;
+ unsigned int first_entry;
struct dma_desc *desc, *first;
struct stmmac_tx_queue *tx_q;
unsigned int enh_desc;