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net: stmmac: fix a broken u32 less than zero check

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The check that queue is less or equal to zero is always true
because queue is a u32; queue is decremented and will wrap around
and never go -ve. Fix this by making queue an int.

Detected by CoverityScan, CID#1428988 ("Unsigned compared against 0")

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Colin Ian King 2017-06-06 14:10:49 +01:00 committed by David S. Miller
parent 426849e661
commit 1d3028f4c1
1 changed files with 1 additions and 1 deletions
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drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
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@ -1208,7 +1208,7 @@ static int init_dma_rx_desc_rings(struct net_device *dev, gfp_t flags)
u32 rx_count = priv->plat->rx_queues_to_use; u32 rx_count = priv->plat->rx_queues_to_use;
unsigned int bfsize = 0; unsigned int bfsize = 0;
int ret = -ENOMEM; int ret = -ENOMEM;
u32 queue; int queue;
int i; int i;
if (priv->hw->mode->set_16kib_bfsize) if (priv->hw->mode->set_16kib_bfsize)