crypto: caam - remove unused local variable

Signed-off-by: Cristian Stoica <cristian.stoica@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/caam/ctrl.c

@@ -175,13 +175,10 @@ static int instantiate_rng(struct device *ctrldev, int state_handle_mask,
 {
 	struct caam_drv_private *ctrlpriv = dev_get_drvdata(ctrldev);
 	struct caam_ctrl __iomem *ctrl;
-	struct rng4tst __iomem *r4tst;
 	u32 *desc, status, rdsta_val;
 	int ret = 0, sh_idx;
 
 	ctrl = (struct caam_ctrl __iomem *)ctrlpriv->ctrl;
-	r4tst = &ctrl->r4tst[0];
-
 	desc = kmalloc(CAAM_CMD_SZ * 7, GFP_KERNEL);
 	if (!desc)
 		return -ENOMEM;
@@ -209,8 +206,7 @@ static int instantiate_rng(struct device *ctrldev, int state_handle_mask,
 		 * without any error (HW optimizations for later
 		 * CAAM eras), then try again.
 		 */
-		rdsta_val =
-			rd_reg32(&ctrl->r4tst[0].rdsta) & RDSTA_IFMASK;
+		rdsta_val = rd_reg32(&ctrl->r4tst[0].rdsta) & RDSTA_IFMASK;
 		if (status || !(rdsta_val & (1 << sh_idx)))
 			ret = -EAGAIN;
 		if (ret)