mmc: whip bus uevent handler into shape

Make the mmc bus uevent callback look like all other subsystems.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>

1 files changed, 17 insertions, 14 deletions

diff --git a/drivers/mmc/core/bus.c b/drivers/mmc/core/bus.c
index 9be11ec05d8..1cc11714916 100644
--- a/drivers/mmc/core/bus.c
+++ b/drivers/mmc/core/bus.c
@@ -62,31 +62,34 @@ mmc_bus_uevent(struct device *dev, char **envp, int num_envp, char *buf,
                 int buf_size)
 {
         struct mmc_card *card = dev_to_mmc_card(dev);
-        int retval = 0, i = 0, length = 0;
-
-#define add_env(fmt,val) do {                                   \
-        retval = add_uevent_var(envp, num_envp, &i,             \
-                                buf, buf_size, &length,         \
-                                fmt, val);                      \
-        if (retval)                                             \
-                return retval;                                  \
-} while (0);
+        const char *type;
+        int i = 0, length = 0;
 
         switch (card->type) {
         case MMC_TYPE_MMC:
-                add_env("MMC_TYPE=%s", "MMC");
+                type = "MMC";
                 break;
         case MMC_TYPE_SD:
-                add_env("MMC_TYPE=%s", "SD");
+                type = "SD";
                 break;
         case MMC_TYPE_SDIO:
-                add_env("MMC_TYPE=%s", "SDIO");
+                type = "SDIO";
                 break;
+        default:
+                type = NULL;
         }
 
-        add_env("MMC_NAME=%s", mmc_card_name(card));
+        if (type) {
+                if (add_uevent_var(envp, num_envp, &i,
+                                buf, buf_size, &length,
+                                "MMC_TYPE=%s", type))
+                        return -ENOMEM;
+        }
 
-#undef add_env
+        if (add_uevent_var(envp, num_envp, &i,
+                        buf, buf_size, &length,
+                        "MMC_NAME=%s", mmc_card_name(card)))
+                return -ENOMEM;
 
         envp[i] = NULL;