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spi: bcm2835: Release the DMA channel if probe fails after dma_init 

The DMA channel was not released if either devm_request_irq() or
devm_spi_register_controller() failed.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Reviewed-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Link: https://lore.kernel.org/r/20191212135550.4634-3-peter.ujfalusi@ti.com
Signed-off-by: Mark Brown <broonie@kernel.org>
alistair/sensors
Peter Ujfalusi 2019-12-12 15:55:43 +02:00 committed by Mark Brown
parent d947c9d26c
commit 666224b43b
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 4 additions and 2 deletions
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6
drivers/spi/spi-bcm2835.c
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@ -1327,20 +1327,22 @@ static int bcm2835_spi_probe(struct platform_device *pdev)
dev_name(&pdev->dev), ctlr);
if (err) {
dev_err(&pdev->dev, "could not request IRQ: %d\n", err);
goto out_clk_disable;
goto out_dma_release;
}
err = devm_spi_register_controller(&pdev->dev, ctlr);
if (err) {
dev_err(&pdev->dev, "could not register SPI controller: %d\n",
err);
goto out_clk_disable;
goto out_dma_release;
}
bcm2835_debugfs_create(bs, dev_name(&pdev->dev));
return 0;
out_dma_release:
bcm2835_dma_release(ctlr, bs);
out_clk_disable:
clk_disable_unprepare(bs->clk);
out_controller_put: