From 767e6f26204d3f5406630e86b720d01818b8616d Mon Sep 17 00:00:00 2001 From: Lad Prabhakar Date: Tue, 26 Apr 2022 08:49:22 +0100 Subject: ASoC: sh: rz-ssi: Release the DMA channels in rz_ssi_probe() error path DMA channels requested by rz_ssi_dma_request() in rz_ssi_probe() were never released in the error path apart from one place. This patch fixes this issue by calling rz_ssi_release_dma_channels() in the error path. Fixes: 26ac471c5354 ("ASoC: sh: rz-ssi: Add SSI DMAC support") Reported-by: Pavel Machek Signed-off-by: Lad Prabhakar Link: https://lore.kernel.org/r/20220426074922.13319-4-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Mark Brown --- sound/soc/sh/rz-ssi.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) (limited to 'sound/soc/sh') diff --git a/sound/soc/sh/rz-ssi.c b/sound/soc/sh/rz-ssi.c index d9a684e71ec3..e392de7a262e 100644 --- a/sound/soc/sh/rz-ssi.c +++ b/sound/soc/sh/rz-ssi.c @@ -976,14 +976,18 @@ static int rz_ssi_probe(struct platform_device *pdev) /* Error Interrupt */ ssi->irq_int = platform_get_irq_byname(pdev, "int_req"); - if (ssi->irq_int < 0) + if (ssi->irq_int < 0) { + rz_ssi_release_dma_channels(ssi); return ssi->irq_int; + } ret = devm_request_irq(&pdev->dev, ssi->irq_int, &rz_ssi_interrupt, 0, dev_name(&pdev->dev), ssi); - if (ret < 0) + if (ret < 0) { + rz_ssi_release_dma_channels(ssi); return dev_err_probe(&pdev->dev, ret, "irq request error (int_req)\n"); + } if (!rz_ssi_is_dma_enabled(ssi)) { /* Tx and Rx interrupts (pio only) */ @@ -1011,13 +1015,16 @@ static int rz_ssi_probe(struct platform_device *pdev) } ssi->rstc = devm_reset_control_get_exclusive(&pdev->dev, NULL); - if (IS_ERR(ssi->rstc)) + if (IS_ERR(ssi->rstc)) { + rz_ssi_release_dma_channels(ssi); return PTR_ERR(ssi->rstc); + } reset_control_deassert(ssi->rstc); pm_runtime_enable(&pdev->dev); ret = pm_runtime_resume_and_get(&pdev->dev); if (ret < 0) { + rz_ssi_release_dma_channels(ssi); pm_runtime_disable(ssi->dev); reset_control_assert(ssi->rstc); return dev_err_probe(ssi->dev, ret, "pm_runtime_resume_and_get failed\n"); -- cgit v1.2.3