linux-kernel - [PATCH] media: pci: mgb4: include linux/errno.h

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Message-Id: <20250307102431.73506-1-arnd@kernel.org>
Date: Fri,  7 Mar 2025 11:24:27 +0100
From: Arnd Bergmann <arnd@...nel.org>
To: Martin Tuma <martin.tuma@...iteqautomotive.com>,
	Mauro Carvalho Chehab <mchehab@...nel.org>
Cc: Arnd Bergmann <arnd@...db.de>,
	Ricardo Ribalda <ribalda@...omium.org>,
	"Bryan O'Donoghue" <bryan.odonoghue@...aro.org>,
	linux-media@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] media: pci: mgb4: include linux/errno.h

From: Arnd Bergmann <arnd@...db.de>

The errno.h header is not always included indirectly, leading
to rare randconfig build warnings.

drivers/media/pci/mgb4/mgb4_regs.c:20:11: error: use of undeclared identifier 'EINVAL'
   20 |                 return -EINVAL;

Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/media/pci/mgb4/mgb4_regs.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/media/pci/mgb4/mgb4_regs.c b/drivers/media/pci/mgb4/mgb4_regs.c
index 31befd722d72..b45537dbfafa 100644
--- a/drivers/media/pci/mgb4/mgb4_regs.c
+++ b/drivers/media/pci/mgb4/mgb4_regs.c
@@ -5,6 +5,7 @@
  */
 
 #include <linux/ioport.h>
+#include <linux/errno.h>
 #include "mgb4_regs.h"
 
 int mgb4_regs_map(struct resource *res, struct mgb4_regs *regs)
-- 
2.39.5