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[34.32.242.206]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-65eab9aae0csm3104205a12.10.2026.02.23.20.37.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 23 Feb 2026 20:37:24 -0800 (PST) From: Artem Lytkin To: Greg Kroah-Hartman Cc: linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org, Artem Lytkin Subject: [PATCH v2 1/3] staging: most: dim2: replace IS_ERR_OR_NULL with IS_ERR for devm_clk_get Date: Tue, 24 Feb 2026 04:37:21 +0000 Message-ID: <20260224043723.1828-2-iprintercanon@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260224043723.1828-1-iprintercanon@gmail.com> References: <20260216201921.1788-1-iprintercanon@gmail.com> <20260224043723.1828-1-iprintercanon@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" devm_clk_get() never returns NULL, so IS_ERR_OR_NULL() checks are unnecessary. Replace them with IS_ERR() for both the "mlb" and "pll8_mlb" clock lookups in fsl_mx6_enable(). Signed-off-by: Artem Lytkin --- drivers/staging/most/dim2/dim2.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/staging/most/dim2/dim2.c b/drivers/staging/most/dim2/d= im2.c index 92c7a7d8fe7e..cea1ba99caf7 100644 --- a/drivers/staging/most/dim2/dim2.c +++ b/drivers/staging/most/dim2/dim2.c @@ -921,7 +921,7 @@ static int fsl_mx6_enable(struct platform_device *pdev) int ret; =20 dev->clk =3D devm_clk_get(&pdev->dev, "mlb"); - if (IS_ERR_OR_NULL(dev->clk)) { + if (IS_ERR(dev->clk)) { dev_err(&pdev->dev, "unable to get mlb clock\n"); return -EFAULT; } @@ -935,7 +935,7 @@ static int fsl_mx6_enable(struct platform_device *pdev) if (dev->clk_speed >=3D CLK_2048FS) { /* enable pll */ dev->clk_pll =3D devm_clk_get(&pdev->dev, "pll8_mlb"); - if (IS_ERR_OR_NULL(dev->clk_pll)) { + if (IS_ERR(dev->clk_pll)) { dev_err(&pdev->dev, "unable to get mlb pll clock\n"); clk_disable_unprepare(dev->clk); return -EFAULT; --=20 2.43.0 From nobody Sun Apr 5 19:43:39 2026 Received: from mail-ed1-f54.google.com (mail-ed1-f54.google.com [209.85.208.54]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BEB5D26A1B9 for ; 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[34.32.242.206]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-65eab9aae0csm3104205a12.10.2026.02.23.20.37.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 23 Feb 2026 20:37:24 -0800 (PST) From: Artem Lytkin To: Greg Kroah-Hartman Cc: linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org, Artem Lytkin Subject: [PATCH v2 2/3] staging: most: dim2: use dev_err_probe and proper error codes for clock Date: Tue, 24 Feb 2026 04:37:22 +0000 Message-ID: <20260224043723.1828-3-iprintercanon@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260224043723.1828-1-iprintercanon@gmail.com> References: <20260216201921.1788-1-iprintercanon@gmail.com> <20260224043723.1828-1-iprintercanon@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Replace hardcoded -EFAULT returns with dev_err_probe() and PTR_ERR() when devm_clk_get() fails in fsl_mx6_enable(). This ensures the correct error code is propagated (e.g. -EPROBE_DEFER for deferred probing) and avoids log noise during probe deferral. Signed-off-by: Artem Lytkin --- drivers/staging/most/dim2/dim2.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) diff --git a/drivers/staging/most/dim2/dim2.c b/drivers/staging/most/dim2/d= im2.c index cea1ba99caf7..e4c8b4995c61 100644 --- a/drivers/staging/most/dim2/dim2.c +++ b/drivers/staging/most/dim2/dim2.c @@ -921,10 +921,9 @@ static int fsl_mx6_enable(struct platform_device *pdev) int ret; =20 dev->clk =3D devm_clk_get(&pdev->dev, "mlb"); - if (IS_ERR(dev->clk)) { - dev_err(&pdev->dev, "unable to get mlb clock\n"); - return -EFAULT; - } + if (IS_ERR(dev->clk)) + return dev_err_probe(&pdev->dev, PTR_ERR(dev->clk), + "unable to get mlb clock\n"); =20 ret =3D clk_prepare_enable(dev->clk); if (ret) { @@ -936,9 +935,9 @@ static int fsl_mx6_enable(struct platform_device *pdev) /* enable pll */ dev->clk_pll =3D devm_clk_get(&pdev->dev, "pll8_mlb"); if (IS_ERR(dev->clk_pll)) { - dev_err(&pdev->dev, "unable to get mlb pll clock\n"); clk_disable_unprepare(dev->clk); - return -EFAULT; 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[34.32.242.206]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-65eab9aae0csm3104205a12.10.2026.02.23.20.37.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 23 Feb 2026 20:37:25 -0800 (PST) From: Artem Lytkin To: Greg Kroah-Hartman Cc: linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org, Artem Lytkin Subject: [PATCH v2 3/3] staging: most: dim2: remove unnecessary string indirection in dev_err Date: Tue, 24 Feb 2026 04:37:23 +0000 Message-ID: <20260224043723.1828-4-iprintercanon@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260224043723.1828-1-iprintercanon@gmail.com> References: <20260216201921.1788-1-iprintercanon@gmail.com> <20260224043723.1828-1-iprintercanon@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Replace dev_err(&pdev->dev, "%s\n", "clk_prepare_enable failed") with the direct format string dev_err(&pdev->dev, "clk_prepare_enable failed\n"). The extra level of indirection through %s is unnecessary. Signed-off-by: Artem Lytkin --- drivers/staging/most/dim2/dim2.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/staging/most/dim2/dim2.c b/drivers/staging/most/dim2/d= im2.c index e4c8b4995c61..66617e89e028 100644 --- a/drivers/staging/most/dim2/dim2.c +++ b/drivers/staging/most/dim2/dim2.c @@ -927,7 +927,7 @@ static int fsl_mx6_enable(struct platform_device *pdev) =20 ret =3D clk_prepare_enable(dev->clk); if (ret) { - dev_err(&pdev->dev, "%s\n", "clk_prepare_enable failed"); + dev_err(&pdev->dev, "clk_prepare_enable failed\n"); return ret; } =20 @@ -975,7 +975,7 @@ static int rcar_gen2_enable(struct platform_device *pde= v) =20 ret =3D clk_prepare_enable(dev->clk); if (ret) { - dev_err(&pdev->dev, "%s\n", "clk_prepare_enable failed"); + dev_err(&pdev->dev, "clk_prepare_enable failed\n"); return ret; } =20 @@ -1020,7 +1020,7 @@ static int rcar_gen3_enable(struct platform_device *p= dev) =20 ret =3D clk_prepare_enable(dev->clk); if (ret) { - dev_err(&pdev->dev, "%s\n", "clk_prepare_enable failed"); + dev_err(&pdev->dev, "clk_prepare_enable failed\n"); return ret; } =20 --=20 2.43.0