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gianfar: free/iounmap memory after an error in mii bus initialization 

Recent changes to MII bus initialization code added exit points which
didn't free or iounmap the bus before returning.

Addresses http://bugzilla.kernel.org/show_bug.cgi?id=11372.

Signed-off-by: Andy Fleming <afleming@freescale.com>
Reported-by: Daniel Marjamki <danielm77@spray.se>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This commit is contained in:
Andy Fleming 2008-09-22 14:10:25 -07:00 committed by Jeff Garzik
parent fbb80230bf
commit ac7198bb12
1 changed files with 8 additions and 6 deletions
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14
drivers/net/gianfar_mii.c
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@ -211,19 +211,21 @@ static int gfar_mdio_probe(struct device *dev)
gfar_write(&enet_regs->tbipa, 0);
for (i = PHY_MAX_ADDR; i > 0; i--) {
u32 phy_id;
int r;
r = get_phy_id(new_bus, i, &phy_id);
if (r)
return r;
err = get_phy_id(new_bus, i, &phy_id);
if (err)
goto bus_register_fail;
if (phy_id == 0xffffffff)
break;
}
/* The bus is full. We don't support using 31 PHYs, sorry */
if (i == 0)
return -EBUSY;
if (i == 0) {
err = -EBUSY;
goto bus_register_fail;
}
gfar_write(&enet_regs->tbipa, i);