Subject: linux-next: build failure after merge of the drm-misc tree

From: Stephen Rothwell <[email-masked]>
Date: Wed, 6 Apr 2022 10:50:49 +1000

Hi all,

After merging the drm-misc tree, today's linux-next build (x86_64
allmodconfig) failed like this:

drivers/gpu/drm/panel/panel-newvision-nv3052c.c:478:19: error: initialization of 'void (*)(struct spi_device *)' from incompatible pointer type 'int (*)(struct spi_device *)' [-Werror=incompatible-pointer-types]
  478 |         .remove = nv3052c_remove,
      |                   ^~~~~~~~~~~~~~
drivers/gpu/drm/panel/panel-newvision-nv3052c.c:478:19: note: (near initialization for 'nv3052c_driver.remove')

Caused by commit

  49956b505c53 ("drm/panel: Add panel driver for NewVision NV3052C based LCDs")

interacting with commit

  2cbfa2128662 ("spi: make remove callback a void function")

from Linus' tree (merged in v5.18-rc1).

I applied the following merge resolution patch for today.

From: Stephen Rothwell <[email-masked]>
Date: Wed, 6 Apr 2022 10:46:57 +1000
Subject: [PATCH] fixup for "spi: make remove callback a void function"

Signed-off-by: Stephen Rothwell <[email-masked]>
---
 drivers/gpu/drm/panel/panel-newvision-nv3052c.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-newvision-nv3052c.c b/drivers/gpu/drm/panel/panel-newvision-nv3052c.c
index 127bcfdb59df..cf078f0d3cd3 100644
--- a/drivers/gpu/drm/panel/panel-newvision-nv3052c.c
+++ b/drivers/gpu/drm/panel/panel-newvision-nv3052c.c
@@ -416,15 +416,13 @@ static int nv3052c_probe(struct spi_device *spi)
 	return 0;
 }
 
-static int nv3052c_remove(struct spi_device *spi)
+static void nv3052c_remove(struct spi_device *spi)
 {
 	struct nv3052c *priv = spi_get_drvdata(spi);
 
 	drm_panel_remove(&priv->panel);
 	drm_panel_disable(&priv->panel);
 	drm_panel_unprepare(&priv->panel);
-
-	return 0;
 }
 
 static const struct drm_display_mode ltk035c5444t_modes[] = {
-- 
2.35.1

-- 
Cheers,
Stephen Rothwell