[MMC] Add mmc_hostname() macro
mmc_hostname() returns a pointer to the hostname for the mmc_host.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/drivers/mmc/mmc_sysfs.c b/drivers/mmc/mmc_sysfs.c
index 5556cd3..3a6b325 100644
--- a/drivers/mmc/mmc_sysfs.c
+++ b/drivers/mmc/mmc_sysfs.c
@@ -206,7 +206,7 @@
int mmc_register_card(struct mmc_card *card)
{
snprintf(card->dev.bus_id, sizeof(card->dev.bus_id),
- "%s:%04x", card->host->host_name, card->rca);
+ "%s:%04x", mmc_hostname(card->host), card->rca);
return device_add(&card->dev);
}