linux-kernel - [PATCH v2 1/2] staging: sm750fb: Remove unused return value in display_control_adjust

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Date:   Thu, 19 Oct 2023 13:13:36 +0300
From:   Dorcas AnonoLitunya <anonolitunya@...il.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     anonolitunya@...il.com, outreachy@...ts.linux.dev,
        julia.lawall@...ia.fr, dan.carpenter@...aro.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Sudip Mukherjee <sudipm.mukherjee@...il.com>,
        Teddy Wang <teddy.wang@...iconmotion.com>,
        linux-fbdev@...r.kernel.org, linux-staging@...ts.linux.dev,
        linux-kernel@...r.kernel.org
Subject: [PATCH v2 1/2] staging: sm750fb: Remove unused return value in display_control_adjust_sm750le()

Modifies the return type of display_control_adjust_sm750le()
to void from unsigned long as the return value is being ignored in
all subsequent function calls.

This improves code readability and maintainability.

Suggested-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Dorcas AnonoLitunya <anonolitunya@...il.com>
---
 drivers/staging/sm750fb/ddk750_mode.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/staging/sm750fb/ddk750_mode.c b/drivers/staging/sm750fb/ddk750_mode.c
index bcdd291d25c9..83ace6cc9583 100644
--- a/drivers/staging/sm750fb/ddk750_mode.c
+++ b/drivers/staging/sm750fb/ddk750_mode.c
@@ -13,7 +13,7 @@
  * HW only supports 7 predefined pixel clocks, and clock select is
  * in bit 29:27 of Display Control register.
  */
-static unsigned long
+static void
 display_control_adjust_sm750le(struct mode_parameter *mode_param,
 			       unsigned long disp_control)
 {
@@ -70,8 +70,6 @@ display_control_adjust_sm750le(struct mode_parameter *mode_param,
 	disp_control |= DISPLAY_CTRL_CLOCK_PHASE;
 
 	poke32(CRT_DISPLAY_CTRL, disp_control);
-
-	return disp_control;
 }
 
 /* only timing related registers will be  programed */
-- 
2.42.0.345.gaab89be2eb