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Groups > linux.kernel > #1349905

[PATCH] stmmac: Fix type of local variable in stmmac_xmit

From Andrzej Hajda <a.hajda@samsung.com>
Newsgroups linux.kernel
Subject [PATCH] stmmac: Fix type of local variable in stmmac_xmit
Date 2016-03-04 08:20 +0100
Message-ID <r8SbL-33v-1@gated-at.bofh.it> (permalink)
Organization linux.* mail to news gateway

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Variable entry holds result of jumbo_frm callback. It can be negative,
so the variable should be signed. The patch changes also type of related
first_entry variable to make code compact and coherent.

The problem has been detected using patch
scripts/coccinelle/tests/unsigned_lesser_than_zero.cocci.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 4c5ce98..cd31a3c 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -1955,7 +1955,7 @@ static netdev_tx_t stmmac_xmit(struct sk_buff *skb, struct net_device *dev)
 	unsigned int nopaged_len = skb_headlen(skb);
 	int i, csum_insertion = 0, is_jumbo = 0;
 	int nfrags = skb_shinfo(skb)->nr_frags;
-	unsigned int entry, first_entry;
+	int entry, first_entry;
 	struct dma_desc *desc, *first;
 	unsigned int enh_desc;
 
-- 
1.9.1

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[PATCH] stmmac: Fix type of local variable in stmmac_xmit Andrzej Hajda <a.hajda@samsung.com> - 2016-03-04 08:20 +0100
  Re: [PATCH] stmmac: Fix type of local variable in stmmac_xmit David Miller <davem@davemloft.net> - 2016-03-04 20:40 +0100

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