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| author | Anton Vorontsov <avorontsov@ru.mvista.com> | 2008-12-18 08:23:33 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-12-18 22:50:55 -0800 |
| commit | 3e73fc9a12679a546284d597c1f19165792d0b83 (patch) | |
| tree | e8feae86c1f4d5a096a1f4f971abe1dbe78072e3 | |
| parent | ba574696a34eb518979e742b35ccd30dec284583 (diff) | |
| download | linux-3.10-3e73fc9a12679a546284d597c1f19165792d0b83.tar.gz linux-3.10-3e73fc9a12679a546284d597c1f19165792d0b83.tar.bz2 linux-3.10-3e73fc9a12679a546284d597c1f19165792d0b83.zip | |
ucc_geth: Fix IO memory (un)mapping code
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>
| -rw-r--r-- | drivers/net/ucc_geth.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/drivers/net/ucc_geth.c b/drivers/net/ucc_geth.c index 052ad71365d..defdad445ec 100644 --- a/drivers/net/ucc_geth.c +++ b/drivers/net/ucc_geth.c @@ -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; } |