mmc_test: only bind to supported cards

We can only perform the tests on MMC and SD cards, so avoid binding
to any other type.

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

1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/mmc/card/mmc_test.c b/drivers/mmc/card/mmc_test.c
index 371d922d9ee2..8e0bb12d048d 100644
--- a/drivers/mmc/card/mmc_test.c
+++ b/drivers/mmc/card/mmc_test.c
@@ -1,7 +1,7 @@
 /*
  *  linux/drivers/mmc/card/mmc_test.c
  *
- *  Copyright 2007 Pierre Ossman
+ *  Copyright 2007-2008 Pierre Ossman
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -858,6 +858,9 @@ static int mmc_test_probe(struct mmc_card *card)
 {
         int ret;
 
+        if ((card->type != MMC_TYPE_MMC) && (card->type != MMC_TYPE_SD))
+                return -ENODEV;
+
         mutex_init(&mmc_test_lock);
 
         ret = device_create_file(&card->dev, &dev_attr_test);