diff options
| author | Peter Ujfalusi <peter.ujfalusi@ti.com> | 2020-12-06 14:10:00 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-12-11 13:23:31 +0100 |
| commit | d863a4ad3cc5723b9e36683fa76ef831809d0cf6 (patch) | |
| tree | f345dd04101fcb64219e7a9c72f985adb4b64c67 /drivers/spi/spi-bcm2835.c | |
| parent | 83d5121c3b0f0af88017553e472eba6e0fd81467 (diff) | |
| download | linux-stable-d863a4ad3cc5723b9e36683fa76ef831809d0cf6.tar.gz linux-stable-d863a4ad3cc5723b9e36683fa76ef831809d0cf6.tar.bz2 linux-stable-d863a4ad3cc5723b9e36683fa76ef831809d0cf6.zip | |
spi: bcm2835: Release the DMA channel if probe fails after dma_init
[ Upstream commit 666224b43b4bd4612ce3b758c038f9bc5c5e3fcb ]
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>
[lukas: backport to 5.4-stable]
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/spi/spi-bcm2835.c')
| -rw-r--r-- | drivers/spi/spi-bcm2835.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/spi/spi-bcm2835.c b/drivers/spi/spi-bcm2835.c index 5bc97b22491c..56ee84e85bee 100644 --- a/drivers/spi/spi-bcm2835.c +++ b/drivers/spi/spi-bcm2835.c @@ -1310,21 +1310,22 @@ 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 = spi_register_controller(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_clk_disable: +out_dma_release: + bcm2835_dma_release(ctlr, bs); clk_disable_unprepare(bs->clk); return err; } |