staging: sm750fb: Remove parentheses from return arguments

---
 drivers/staging/sm750fb/ddk750_hwi2c.c  | 4 ++--
 drivers/staging/sm750fb/ddk750_sii164.c | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)
 
diff --git a/drivers/staging/sm750fb/ddk750_hwi2c.c b/drivers/staging/sm750fb/ddk750_hwi2c.c
index 231c021..39c3e1c 100644
--- a/drivers/staging/sm750fb/ddk750_hwi2c.c
+++ b/drivers/staging/sm750fb/ddk750_hwi2c.c
@@ -63,7 +63,7 @@ static long hw_i2c_wait_tx_done(void)
 		timeout--;
 
 	if (timeout == 0)
-		return (-1);
+		return -1;
 
 	return 0;
 }
@@ -248,7 +248,7 @@ int sm750_hw_i2c_write_reg(
 	if (hw_i2c_write_data(addr, 2, value) == 2)
 		return 0;
 
-	return (-1);
+	return -1;
 }
 
 #endif
diff --git a/drivers/staging/sm750fb/ddk750_sii164.c b/drivers/staging/sm750fb/ddk750_sii164.c
index 9fd6afb..67f36e7 100644
--- a/drivers/staging/sm750fb/ddk750_sii164.c
+++ b/drivers/staging/sm750fb/ddk750_sii164.c
@@ -236,7 +236,7 @@ long sii164InitChip(
 	}
 
 	/* Return -1 if initialization fails. */
-	return (-1);
+	return -1;
 }