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ucc_geth: Fix IO memory (un)mapping code

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The driver doesn't check ioremap() return value, and doesn't free the
remapped memory.

This patch fixes it.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Anton Vorontsov 2008-12-18 08:23:33 +00:00 committed by David S. Miller
parent ba574696a3
commit 3e73fc9a12
1 changed files with 12 additions and 3 deletions
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15
drivers/net/ucc_geth.c
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@ -2218,7 +2218,10 @@ static void ucc_geth_memclean(struct ucc_geth_private *ugeth)
while (!list_empty(&ugeth->ind_hash_q))
put_enet_addr_container(ENET_ADDR_CONT_ENTRY
(dequeue(&ugeth->ind_hash_q)));
if (ugeth->ug_regs) {
iounmap(ugeth->ug_regs);
ugeth->ug_regs = NULL;
}
}
static void ucc_geth_set_multi(struct net_device *dev)
@ -2423,7 +2426,12 @@ static int ucc_struct_init(struct ucc_geth_private *ugeth)
return -ENOMEM;
}
ugeth->ug_regs = (struct ucc_geth __iomem *) ioremap(uf_info->regs, sizeof(struct ucc_geth));
ugeth->ug_regs = ioremap(uf_info->regs, sizeof(*ugeth->ug_regs));
if (!ugeth->ug_regs) {
if (netif_msg_probe(ugeth))
ugeth_err("%s: Failed to ioremap regs.", __func__);
return -ENOMEM;
}
return 0;
}
@ -3689,7 +3697,7 @@ static int ucc_geth_open(struct net_device *dev)
if (err) {
if (netif_msg_ifup(ugeth))
ugeth_err("%s: Cannot configure internal struct, aborting.", dev->name);
return err;
goto out_err_stop;
}
napi_enable(&ugeth->napi);
@ -3752,6 +3760,7 @@ static int ucc_geth_open(struct net_device *dev)
out_err:
napi_disable(&ugeth->napi);
out_err_stop:
ucc_geth_stop(ugeth);
return err;
}