mtip32xx: release the semaphore on an error path

[firefly-linux-kernel-4.4.55.git] / drivers / block / mtip32xx / mtip32xx.c

diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c
index 00f9fc992090099e72e8f753ab9d58fe47154b46..304000c3d433f1d98afe6c0f0feea8553dc7bd04 100644 (file)
--- a/drivers/block/mtip32xx/mtip32xx.c
+++ b/drivers/block/mtip32xx/mtip32xx.c
@@ -2510,8 +2510,10 @@ static struct scatterlist *mtip_hw_get_scatterlist(struct driver_data *dd,
                up(&dd->port->cmd_slot);
                return NULL;
        }
-       if (unlikely(*tag < 0))
+       if (unlikely(*tag < 0)) {
+               up(&dd->port->cmd_slot);
                return NULL;
+       }
 
        return dd->port->commands[*tag].sg;
 }