From: Jani Nikula <jani.nik...@intel.com>
Fix build warning if drm_panel.h is built with CONFIG_OF=n or
CONFIG_DRM_PANEL=n and included without the prerequisite err.h:
./include/drm/drm_panel.h: In function ‘of_drm_find_panel’:
./include/drm/drm_panel.h:203:9: error: implicit declaration of function
‘ERR_PTR’ [-Werror=implicit-function-declaration]
return ERR_PTR(-ENODEV);
^~~~~~~
./include/drm/drm_panel.h:203:9: error: returning ‘int’ from a function with
return type ‘struct drm_panel *’ makes pointer from integer without a cast
[-Werror=int-conversion]
return ERR_PTR(-ENODEV);
^~~~~~~~~~~~~~~~
Fixes: 5fa8e4a22182 ("drm/panel: Make of_drm_find_panel() return an ERR_PTR()
instead of NULL")
Cc: Boris Brezillon <boris.brezil...@bootlin.com>
Signed-off-by: Jani Nikula <jani.nik...@intel.com>
Acked-by: Thierry Reding <tred...@nvidia.com>
Reviewed-by: Sam Ravnborg <s...@ravnborg.org>
---
include/drm/drm_panel.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/include/drm/drm_panel.h b/include/drm/drm_panel.h
index 8c738c0e6e9f..26377836141c 100644
--- a/include/drm/drm_panel.h
+++ b/include/drm/drm_panel.h
@@ -24,6 +24,7 @@
#ifndef __DRM_PANEL_H__
#define __DRM_PANEL_H__
+#include <linux/err.h>
#include <linux/errno.h>
#include <linux/list.h>
--
2.20.1
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