mmc: skip reclaiming host on mmc_add_card() error

There's little sense in releasing the host on mmc_add_card() error
immediately after reclaiming  it, so reclaim the host  only in case
of success.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index 479b84a..c793fda 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -2004,14 +2004,13 @@
 
 	mmc_release_host(host);
 	err = mmc_add_card(host->card);
-	mmc_claim_host(host);
 	if (err)
 		goto remove_card;
 
+	mmc_claim_host(host);
 	return 0;
 
 remove_card:
-	mmc_release_host(host);
 	mmc_remove_card(host->card);
 	mmc_claim_host(host);
 	host->card = NULL;