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Unverified Commit 479c03a7 authored by Christophe Jaillet's avatar Christophe Jaillet Committed by Mark Brown
Browse files

spi: orion: Fix a resource leak if the optional "axi" clk is deferred 



If the optional "axi" clk is deferred, we still need to undo some
initialisation. Especially 'master' must be released. It will be
reallocated the next time 'orion_spi_probe()' is called.

Add a new label to clean what needs to be cleaned and rename another
label to improve the names used.

Fixes: 92ae112e ("spi: orion: Fix clock resource by adding an optional bus clock")
Signed-off-by: default avatarChristophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: default avatarGregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 92ae112e

drivers/spi/spi-orion.c

+8 −5
Original line number Diff line number Diff line
@@ -638,8 +638,10 @@ static int orion_spi_probe(struct platform_device *pdev) 
	/* The following clock is only used by some SoCs */

	spi->axi_clk = devm_clk_get(&pdev->dev, "axi");

	if (IS_ERR(spi->axi_clk) &&

	    PTR_ERR(spi->axi_clk) == -EPROBE_DEFER)

		return -EPROBE_DEFER;

	    PTR_ERR(spi->axi_clk) == -EPROBE_DEFER) {

		status = -EPROBE_DEFER;

		goto out_rel_clk;

	}

	if (!IS_ERR(spi->axi_clk))

		clk_prepare_enable(spi->axi_clk);
@@ -667,7 +669,7 @@ static int orion_spi_probe(struct platform_device *pdev) 
	spi->base = devm_ioremap_resource(&pdev->dev, r);

	if (IS_ERR(spi->base)) {

		status = PTR_ERR(spi->base);

		goto out_rel_clk;

		goto out_rel_axi_clk;

	}



	/* Scan all SPI devices of this controller for direct mapped devices */
@@ -705,7 +707,7 @@ static int orion_spi_probe(struct platform_device *pdev) 
							    PAGE_SIZE);

		if (!spi->direct_access[cs].vaddr) {

			status = -ENOMEM;

			goto out_rel_clk;

			goto out_rel_axi_clk;

		}

		spi->direct_access[cs].size = PAGE_SIZE;
@@ -733,8 +735,9 @@ static int orion_spi_probe(struct platform_device *pdev) 


out_rel_pm:

	pm_runtime_disable(&pdev->dev);

out_rel_clk:

out_rel_axi_clk:

	clk_disable_unprepare(spi->axi_clk);

out_rel_clk:

	clk_disable_unprepare(spi->clk);

out:

	spi_master_put(master);