From: Christophe JAILLET christophe.jaillet@wanadoo.fr

[ Upstream commit 03990fd58d2b7c8f7d53e514ba9b8749fac260f9 ]

If an error occurs after the call to 'omap_mcbsp_init()', the reference to 'mcbsp->fclk' must be decremented, as already done in the remove function.

This can be achieved easily by using the devm_ variant of 'clk_get()' when the reference is taken in 'omap_mcbsp_init()'

This fixes the leak in the probe and has the side effect to simplify both the error handling path of 'omap_mcbsp_init()' and the remove function.

Signed-off-by: Christophe JAILLET christophe.jaillet@wanadoo.fr Acked-by: Peter Ujfalusi peter.ujflausi@ti.com Link: https://lore.kernel.org/r/20200512134325.252073-1-christophe.jaillet@wanadoo... Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- sound/soc/ti/omap-mcbsp.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/sound/soc/ti/omap-mcbsp.c b/sound/soc/ti/omap-mcbsp.c index 26b503bbdb5f..3273b317fa3b 100644 --- a/sound/soc/ti/omap-mcbsp.c +++ b/sound/soc/ti/omap-mcbsp.c @@ -686,7 +686,7 @@ static int omap_mcbsp_init(struct platform_device *pdev) mcbsp->dma_data[1].addr = omap_mcbsp_dma_reg_params(mcbsp, SNDRV_PCM_STREAM_CAPTURE);

- mcbsp->fclk = clk_get(&pdev->dev, "fck"); + mcbsp->fclk = devm_clk_get(&pdev->dev, "fck"); if (IS_ERR(mcbsp->fclk)) { ret = PTR_ERR(mcbsp->fclk); dev_err(mcbsp->dev, "unable to get fck: %d\n", ret); @@ -711,7 +711,7 @@ static int omap_mcbsp_init(struct platform_device *pdev) if (ret) { dev_err(mcbsp->dev, "Unable to create additional controls\n"); - goto err_thres; + return ret; } }

@@ -724,8 +724,6 @@ static int omap_mcbsp_init(struct platform_device *pdev) err_st: if (mcbsp->pdata->buffer_size) sysfs_remove_group(&mcbsp->dev->kobj, &additional_attr_group); -err_thres: - clk_put(mcbsp->fclk); return ret; }

@@ -1442,8 +1440,6 @@ static int asoc_mcbsp_remove(struct platform_device *pdev)

omap_mcbsp_st_cleanup(pdev);

- clk_put(mcbsp->fclk); - return 0; }