sata_rcar: fix compilation warning in sata_rcar_thaw()

When compiling the driver with gcc 4.8, it gives the following warning:

 drivers/ata/sata_rcar.c: In function `sata_rcar_thaw':
 drivers/ata/sata_rcar.c:183:2: warning: large integer implicitly truncated to unsigned type [-Woverflow]

Fix the warning by explicit cast of the 'unsigned long' value to 'u32'.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/ata/sata_rcar.c b/drivers/ata/sata_rcar.c
index 249c8a289bfd..d51423463479 100644
--- a/drivers/ata/sata_rcar.c
+++ b/drivers/ata/sata_rcar.c
@@ -180,7 +180,7 @@ static void sata_rcar_thaw(struct ata_port *ap)
         struct sata_rcar_priv *priv = ap->host->private_data;
 
         /* ack */
-        iowrite32(~SATA_RCAR_INT_MASK, priv->base + SATAINTSTAT_REG);
+        iowrite32(~(u32)SATA_RCAR_INT_MASK, priv->base + SATAINTSTAT_REG);
 
         ata_sff_thaw(ap);