mmc: toshsd: Fix unbalanced locking

Fix returning IRQ_HANDLED with spin_lock held.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/mmc/host/toshsd.c b/drivers/mmc/host/toshsd.c
index e5d8dec65f44..e2cdd5fb1423 100644
--- a/drivers/mmc/host/toshsd.c
+++ b/drivers/mmc/host/toshsd.c
@@ -176,7 +176,8 @@ static irqreturn_t toshsd_thread_irq(int irq, void *dev_id)
         spin_lock_irqsave(&host->lock, flags);
 
         if (!sg_miter_next(sg_miter))
-                return IRQ_HANDLED;
+                goto done;
+
         buf = sg_miter->addr;
 
         /* Ensure we dont read more than one block. The chip will interrupt us
@@ -198,6 +199,7 @@ static irqreturn_t toshsd_thread_irq(int irq, void *dev_id)
         sg_miter->consumed = count;
         sg_miter_stop(sg_miter);
 
+done:
         spin_unlock_irqrestore(&host->lock, flags);
 
         return IRQ_HANDLED;