[alsa-devel] [PATCH] ASoC: ux500: adjust devm usage
The explicit call to devm_regulator_put in the probe and remove functions does not seem to be necessary. In particular, the functions prcmu_qos_remove_requirement and ux500_msp_i2s_cleanup_msp in the remove function seem to do nothing that can interfere with devm_regulator_put, making it safe to allow devm_regulator_put to occur after the end of the remove function.
Convert the calls to clk_get to devm_clk_get, and remove the corresponding calls to clk_put in the probe and remove functions.
Replace various gotos by direct returns, and drop unneeded labels.
Signed-off-by: Julia Lawall Julia.Lawall@lip6.fr
--- sound/soc/ux500/ux500_msp_dai.c | 29 ++++++++++------------------- 1 file changed, 10 insertions(+), 19 deletions(-)
diff --git a/sound/soc/ux500/ux500_msp_dai.c b/sound/soc/ux500/ux500_msp_dai.c index 978f2d7..f5df08d 100644 --- a/sound/soc/ux500/ux500_msp_dai.c +++ b/sound/soc/ux500/ux500_msp_dai.c @@ -773,20 +773,22 @@ static int ux500_msp_drv_probe(struct platform_device *pdev) } prcmu_qos_add_requirement(PRCMU_QOS_APE_OPP, (char *)pdev->name, 50);
- drvdata->pclk = clk_get(&pdev->dev, "apb_pclk"); + drvdata->pclk = devm_clk_get(&pdev->dev, "apb_pclk"); if (IS_ERR(drvdata->pclk)) { ret = (int)PTR_ERR(drvdata->pclk); - dev_err(&pdev->dev, "%s: ERROR: clk_get of pclk failed (%d)!\n", + dev_err(&pdev->dev, + "%s: ERROR: devm_clk_get of pclk failed (%d)!\n", __func__, ret); - goto err_pclk; + return ret; }
- drvdata->clk = clk_get(&pdev->dev, NULL); + drvdata->clk = devm_clk_get(&pdev->dev, NULL); if (IS_ERR(drvdata->clk)) { ret = (int)PTR_ERR(drvdata->clk); - dev_err(&pdev->dev, "%s: ERROR: clk_get failed (%d)!\n", + dev_err(&pdev->dev, + "%s: ERROR: devm_clk_get failed (%d)!\n", __func__, ret); - goto err_clk; + return ret; }
ret = ux500_msp_i2s_init_msp(pdev, &drvdata->msp, @@ -795,7 +797,7 @@ static int ux500_msp_drv_probe(struct platform_device *pdev) dev_err(&pdev->dev, "%s: ERROR: Failed to init MSP-struct (%d)!", __func__, ret); - goto err_init_msp; + return ret; } dev_set_drvdata(&pdev->dev, drvdata);
@@ -804,7 +806,7 @@ static int ux500_msp_drv_probe(struct platform_device *pdev) if (ret < 0) { dev_err(&pdev->dev, "Error: %s: Failed to register MSP%d!\n", __func__, drvdata->msp->id); - goto err_init_msp; + return ret; }
ret = ux500_pcm_register_platform(pdev); @@ -819,13 +821,6 @@ static int ux500_msp_drv_probe(struct platform_device *pdev)
err_reg_plat: snd_soc_unregister_component(&pdev->dev); -err_init_msp: - clk_put(drvdata->clk); -err_clk: - clk_put(drvdata->pclk); -err_pclk: - devm_regulator_put(drvdata->reg_vape); - return ret; }
@@ -837,12 +832,8 @@ static int ux500_msp_drv_remove(struct platform_device *pdev)
snd_soc_unregister_component(&pdev->dev);
- devm_regulator_put(drvdata->reg_vape); prcmu_qos_remove_requirement(PRCMU_QOS_APE_OPP, "ux500_msp_i2s");
- clk_put(drvdata->clk); - clk_put(drvdata->pclk); - ux500_msp_i2s_cleanup_msp(pdev, drvdata->msp);
return 0;
On 19 July 2015 at 21:12, Julia Lawall Julia.Lawall@lip6.fr wrote:
The explicit call to devm_regulator_put in the probe and remove functions does not seem to be necessary. In particular, the functions prcmu_qos_remove_requirement and ux500_msp_i2s_cleanup_msp in the remove function seem to do nothing that can interfere with devm_regulator_put, making it safe to allow devm_regulator_put to occur after the end of the remove function.
Convert the calls to clk_get to devm_clk_get, and remove the corresponding calls to clk_put in the probe and remove functions.
Replace various gotos by direct returns, and drop unneeded labels.
Signed-off-by: Julia Lawall Julia.Lawall@lip6.fr
Reviewed-by: Ulf Hansson ulf.hansson@linaro.org
Kind regards Uffe
sound/soc/ux500/ux500_msp_dai.c | 29 ++++++++++------------------- 1 file changed, 10 insertions(+), 19 deletions(-)
diff --git a/sound/soc/ux500/ux500_msp_dai.c b/sound/soc/ux500/ux500_msp_dai.c index 978f2d7..f5df08d 100644 --- a/sound/soc/ux500/ux500_msp_dai.c +++ b/sound/soc/ux500/ux500_msp_dai.c @@ -773,20 +773,22 @@ static int ux500_msp_drv_probe(struct platform_device *pdev) } prcmu_qos_add_requirement(PRCMU_QOS_APE_OPP, (char *)pdev->name, 50);
drvdata->pclk = clk_get(&pdev->dev, "apb_pclk");
drvdata->pclk = devm_clk_get(&pdev->dev, "apb_pclk"); if (IS_ERR(drvdata->pclk)) { ret = (int)PTR_ERR(drvdata->pclk);
dev_err(&pdev->dev, "%s: ERROR: clk_get of pclk failed (%d)!\n",
dev_err(&pdev->dev,"%s: ERROR: devm_clk_get of pclk failed (%d)!\n", __func__, ret);
goto err_pclk;
return ret; }
drvdata->clk = clk_get(&pdev->dev, NULL);
drvdata->clk = devm_clk_get(&pdev->dev, NULL); if (IS_ERR(drvdata->clk)) { ret = (int)PTR_ERR(drvdata->clk);
dev_err(&pdev->dev, "%s: ERROR: clk_get failed (%d)!\n",
dev_err(&pdev->dev,"%s: ERROR: devm_clk_get failed (%d)!\n", __func__, ret);
goto err_clk;
return ret; } ret = ux500_msp_i2s_init_msp(pdev, &drvdata->msp,@@ -795,7 +797,7 @@ static int ux500_msp_drv_probe(struct platform_device *pdev) dev_err(&pdev->dev, "%s: ERROR: Failed to init MSP-struct (%d)!", __func__, ret);
goto err_init_msp;
return ret; } dev_set_drvdata(&pdev->dev, drvdata);@@ -804,7 +806,7 @@ static int ux500_msp_drv_probe(struct platform_device *pdev) if (ret < 0) { dev_err(&pdev->dev, "Error: %s: Failed to register MSP%d!\n", __func__, drvdata->msp->id);
goto err_init_msp;
return ret; } ret = ux500_pcm_register_platform(pdev);@@ -819,13 +821,6 @@ static int ux500_msp_drv_probe(struct platform_device *pdev)
err_reg_plat: snd_soc_unregister_component(&pdev->dev); -err_init_msp:
clk_put(drvdata->clk);-err_clk:
clk_put(drvdata->pclk);-err_pclk:
devm_regulator_put(drvdata->reg_vape);return ret;}
@@ -837,12 +832,8 @@ static int ux500_msp_drv_remove(struct platform_device *pdev)
snd_soc_unregister_component(&pdev->dev);
devm_regulator_put(drvdata->reg_vape); prcmu_qos_remove_requirement(PRCMU_QOS_APE_OPP, "ux500_msp_i2s");clk_put(drvdata->clk);clk_put(drvdata->pclk);ux500_msp_i2s_cleanup_msp(pdev, drvdata->msp); return 0;-- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
The patch
ASoC: ux500: adjust devm usage
has been applied to the asoc tree at
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git
All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.
You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed.
If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced.
Please add any relevant lists and maintainers to the CCs when replying to this mail.
Thanks, Mark
From 4313489c25622b05adac55dbb9590fb5674c3f45 Mon Sep 17 00:00:00 2001
From: Julia Lawall Julia.Lawall@lip6.fr Date: Sun, 19 Jul 2015 21:12:16 +0200 Subject: [PATCH] ASoC: ux500: adjust devm usage
The explicit call to devm_regulator_put in the probe and remove functions does not seem to be necessary. In particular, the functions prcmu_qos_remove_requirement and ux500_msp_i2s_cleanup_msp in the remove function seem to do nothing that can interfere with devm_regulator_put, making it safe to allow devm_regulator_put to occur after the end of the remove function.
Convert the calls to clk_get to devm_clk_get, and remove the corresponding calls to clk_put in the probe and remove functions.
Replace various gotos by direct returns, and drop unneeded labels.
Signed-off-by: Julia Lawall Julia.Lawall@lip6.fr Reviewed-by: Ulf Hansson ulf.hansson@linaro.org Signed-off-by: Mark Brown broonie@kernel.org --- sound/soc/ux500/ux500_msp_dai.c | 29 ++++++++++------------------- 1 file changed, 10 insertions(+), 19 deletions(-)
diff --git a/sound/soc/ux500/ux500_msp_dai.c b/sound/soc/ux500/ux500_msp_dai.c index 978f2d7316b0..f5df08ded770 100644 --- a/sound/soc/ux500/ux500_msp_dai.c +++ b/sound/soc/ux500/ux500_msp_dai.c @@ -773,20 +773,22 @@ static int ux500_msp_drv_probe(struct platform_device *pdev) } prcmu_qos_add_requirement(PRCMU_QOS_APE_OPP, (char *)pdev->name, 50);
- drvdata->pclk = clk_get(&pdev->dev, "apb_pclk"); + drvdata->pclk = devm_clk_get(&pdev->dev, "apb_pclk"); if (IS_ERR(drvdata->pclk)) { ret = (int)PTR_ERR(drvdata->pclk); - dev_err(&pdev->dev, "%s: ERROR: clk_get of pclk failed (%d)!\n", + dev_err(&pdev->dev, + "%s: ERROR: devm_clk_get of pclk failed (%d)!\n", __func__, ret); - goto err_pclk; + return ret; }
- drvdata->clk = clk_get(&pdev->dev, NULL); + drvdata->clk = devm_clk_get(&pdev->dev, NULL); if (IS_ERR(drvdata->clk)) { ret = (int)PTR_ERR(drvdata->clk); - dev_err(&pdev->dev, "%s: ERROR: clk_get failed (%d)!\n", + dev_err(&pdev->dev, + "%s: ERROR: devm_clk_get failed (%d)!\n", __func__, ret); - goto err_clk; + return ret; }
ret = ux500_msp_i2s_init_msp(pdev, &drvdata->msp, @@ -795,7 +797,7 @@ static int ux500_msp_drv_probe(struct platform_device *pdev) dev_err(&pdev->dev, "%s: ERROR: Failed to init MSP-struct (%d)!", __func__, ret); - goto err_init_msp; + return ret; } dev_set_drvdata(&pdev->dev, drvdata);
@@ -804,7 +806,7 @@ static int ux500_msp_drv_probe(struct platform_device *pdev) if (ret < 0) { dev_err(&pdev->dev, "Error: %s: Failed to register MSP%d!\n", __func__, drvdata->msp->id); - goto err_init_msp; + return ret; }
ret = ux500_pcm_register_platform(pdev); @@ -819,13 +821,6 @@ static int ux500_msp_drv_probe(struct platform_device *pdev)
err_reg_plat: snd_soc_unregister_component(&pdev->dev); -err_init_msp: - clk_put(drvdata->clk); -err_clk: - clk_put(drvdata->pclk); -err_pclk: - devm_regulator_put(drvdata->reg_vape); - return ret; }
@@ -837,12 +832,8 @@ static int ux500_msp_drv_remove(struct platform_device *pdev)
snd_soc_unregister_component(&pdev->dev);
- devm_regulator_put(drvdata->reg_vape); prcmu_qos_remove_requirement(PRCMU_QOS_APE_OPP, "ux500_msp_i2s");
- clk_put(drvdata->clk); - clk_put(drvdata->pclk); - ux500_msp_i2s_cleanup_msp(pdev, drvdata->msp);
return 0;
participants (3)
-
Julia Lawall -
Mark Brown -
Ulf Hansson