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Tue, 23 Jun 2026 12:48:09 -0700 (PDT) Received: from legion.localdomain ([92.44.171.31]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-466667881bfsm40346658f8f.22.2026.06.23.12.48.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 23 Jun 2026 12:48:08 -0700 (PDT) Message-ID: <6a3ae2f8.cf2df9a4.132dbf.1a50@mx.google.com> From: Batu Ada Tutkun Date: Tue, 23 Jun 2026 22:46:07 +0300 Subject: [PATCH v2] staging: most: dim2: use dev_err_probe() for clock errors in rcar enable functions To: parthiban.veerasooran@microchip.com, christian.gromm@microchip.com Cc: gregkh@linuxfoundation.org, linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org, error27@gmail.com In-Reply-To: <20260623124243.1245-1-batuadatutkun@gmail.com> References: <20260623124243.1245-1-batuadatutkun@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: rcar_gen2_enable() and rcar_gen3_enable() use the old pattern of dev_err() followed by return PTR_ERR() when devm_clk_get() fails. fsl_mx6_enable() in the same file was already converted to use dev_err_probe() by a previous cleanup series. Convert the remaining two functions for consistency. devm_clk_get() calls clk_get() which can return -EPROBE_DEFER if the clock provider has not yet registered. Using dev_err_probe() suppresses the log at error level in that case, avoiding misleading "cannot get clock" output during a normal deferred probe. clk_prepare_enable() cannot return -EPROBE_DEFER since the clock handle is already acquired at that point, so those error paths are left as dev_err(). Signed-off-by: Batu Ada Tutkun --- Compile tested only. No R-Car hardware available. This is a correctness fix for the deferred probe path, not a response to a reported user visible issue. Changes in v2: - Mention clk_get() explicitly in commit message - Add testing note under --- cut off line drivers/staging/most/video/video.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/staging/most/video/video.c b/drivers/staging/most/video/video.c index 04351f8cc..1e1ff3c52 100644 --- a/drivers/staging/most/video/video.c +++ b/drivers/staging/most/video/video.c @@ -33,14 +33,14 @@ struct most_video_dev { bool mute; struct list_head pending_mbos; - spinlock_t list_lock; + spinlock_t list_lock; /* protects pending_mbos and mute */ struct v4l2_device v4l2_dev; atomic_t access_ref; struct video_device *vdev; unsigned int ctrl_input; - struct mutex lock; + struct mutex lock; /* serializes V4L2 ioctls */ wait_queue_head_t wait_data; }; -- 2.53.0