mmc: get back read-only switch function

[safe/jmp/linux-2.6] / drivers / mmc / core / sd.c

diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c
index 41bfb5d..918477c 100644 (file)
--- a/drivers/mmc/core/sd.c
+++ b/drivers/mmc/core/sd.c
@@ -427,6 +427,21 @@ static int mmc_sd_init_card(struct mmc_host *host, u32 ocr,
                mmc_set_bus_width(host, MMC_BUS_WIDTH_4);
        }
 
+       /*
+        * Check if read-only switch is active.
+        */
+       if (!oldcard) {
+               if (!host->ops->get_ro) {
+                       printk(KERN_WARNING "%s: host does not "
+                               "support reading read-only "
+                               "switch. assuming write-enable.\n",
+                               mmc_hostname(host));
+               } else {
+                       if (host->ops->get_ro(host))
+                               mmc_card_set_readonly(card);
+               }
+       }
+
        if (!oldcard)
                host->card = card;