From: Alexander Stein Date: Tue, 9 Nov 2021 10:31:34 +0000 (+0100) Subject: spi: lpspi: release requested DMA channels X-Git-Tag: v5.10.227~327 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=0ed35dd547ec5d8cb672d01fda22faf51addeaf7;p=thirdparty%2Fkernel%2Fstable.git spi: lpspi: release requested DMA channels [ Upstream commit f02bff30114f385d53ae3e45141db602923bca5d ] The requested DMA channels are never released. Do this in .remove as well as in .probe. spi_register_controller() can return -EPROBE_DEFER if cs-gpios are not probed yet. Signed-off-by: Alexander Stein Link: https://lore.kernel.org/r/20211109103134.184216-1-alexander.stein@ew.tq-group.com Signed-off-by: Mark Brown Stable-dep-of: 3b577de206d5 ("spi: spi-fsl-lpspi: Undo runtime PM changes at driver exit time") Signed-off-by: Sasha Levin --- diff --git a/drivers/spi/spi-fsl-lpspi.c b/drivers/spi/spi-fsl-lpspi.c index bc3e434ba2986..314629b172281 100644 --- a/drivers/spi/spi-fsl-lpspi.c +++ b/drivers/spi/spi-fsl-lpspi.c @@ -920,7 +920,7 @@ static int fsl_lpspi_probe(struct platform_device *pdev) ret = devm_spi_register_controller(&pdev->dev, controller); if (ret < 0) { dev_err_probe(&pdev->dev, ret, "spi_register_controller error: %i\n", ret); - goto out_pm_get; + goto free_dma; } pm_runtime_mark_last_busy(fsl_lpspi->dev); @@ -928,6 +928,8 @@ static int fsl_lpspi_probe(struct platform_device *pdev) return 0; +free_dma: + fsl_lpspi_dma_exit(controller); out_pm_get: pm_runtime_dont_use_autosuspend(fsl_lpspi->dev); pm_runtime_put_sync(fsl_lpspi->dev); @@ -944,6 +946,8 @@ static int fsl_lpspi_remove(struct platform_device *pdev) struct fsl_lpspi_data *fsl_lpspi = spi_controller_get_devdata(controller); + fsl_lpspi_dma_exit(controller); + pm_runtime_disable(fsl_lpspi->dev); return 0; }