linux-kernel - [PATCH 0/5] media: use int type to store negative error codes

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Message-Id: <20250827123916.504189-1-rongqianfeng@vivo.com>
Date: Wed, 27 Aug 2025 20:39:08 +0800
From: Qianfeng Rong <rongqianfeng@...o.com>
To: Abylay Ospan <aospan@...zon.com>,
	Mauro Carvalho Chehab <mchehab@...nel.org>,
	Sakari Ailus <sakari.ailus@...ux.intel.com>,
	Jacopo Mondi <jacopo@...ndi.org>,
	Tomi Valkeinen <tomi.valkeinen@...asonboard.com>,
	Raspberry Pi Kernel Maintenance <kernel-list@...pberrypi.com>,
	Florian Fainelli <florian.fainelli@...adcom.com>,
	Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>,
	Hugues Fruchet <hugues.fruchet@...s.st.com>,
	Alain Volmat <alain.volmat@...s.st.com>,
	Maxime Coquelin <mcoquelin.stm32@...il.com>,
	Alexandre Torgue <alexandre.torgue@...s.st.com>,
	Sean Young <sean@...s.org>,
	Qianfeng Rong <rongqianfeng@...o.com>,
	linux-media@...r.kernel.org (open list:MEDIA DRIVERS FOR CXD2841ER),
	linux-kernel@...r.kernel.org (open list),
	linux-rpi-kernel@...ts.infradead.org (moderated list:BROADCOM BCM2711/BCM2835 ARM ARCHITECTURE),
	linux-arm-kernel@...ts.infradead.org (moderated list:BROADCOM BCM2711/BCM2835 ARM ARCHITECTURE),
	linux-stm32@...md-mailman.stormreply.com (moderated list:ARM/STM32 ARCHITECTURE)
Subject: [PATCH 0/5] media: use int type to store negative error codes

The 'ret' variable usually is used to store returns from some functions,
which return either zero on success or negative error codes on failure.

Storing the negative error codes in unsigned type, doesn't cause an issue
at runtime but it's ugly as pants.  Change "ret" from u8/u32/unsigned int
to int type.  No effect on runtime.

Qianfeng Rong (5):
  media: dvb: use int type to store negative error codes
  media: i2c: mt9v111: use int type to store negative error codes
  media: raspberrypi: use int type to store negative error codes
  media: stm32-dcmi: use int type to store negative error codes
  media: redrat3: use int type to store negative error codes

 drivers/media/dvb-frontends/cxd2841er.c           | 3 ++-
 drivers/media/dvb-frontends/lgdt330x.c            | 4 ++--
 drivers/media/i2c/mt9v111.c                       | 2 +-
 drivers/media/platform/raspberrypi/rp1-cfe/csi2.c | 2 +-
 drivers/media/platform/st/stm32/stm32-dcmi.c      | 4 ++--
 drivers/media/rc/redrat3.c                        | 2 +-
 6 files changed, 9 insertions(+), 8 deletions(-)

-- 
2.34.1