mmc: msm_sdcc: add missing spin_unlock

Change-Id: I3aadbc2a5da6c0e50e6d08aaa28baaa30289f4ae
Signed-off-by: Jeff Ohlstein <johlstei@codeaurora.org>
diff --git a/drivers/mmc/host/msm_sdcc.c b/drivers/mmc/host/msm_sdcc.c
index ab252c9..31c4172 100644
--- a/drivers/mmc/host/msm_sdcc.c
+++ b/drivers/mmc/host/msm_sdcc.c
@@ -617,6 +617,7 @@
 			host->dummy_52_sent = 1;
 			msmsdcc_start_command(host, &dummy52cmd,
 					      MCI_CPSM_PROGENA);
+			spin_unlock_irqrestore(&host->lock, flags);
 			return;
 		}
 		msmsdcc_stop_data(host);