| Message ID | 20230525113000.1290758-1-Vijendar.Mukunda@amd.com |
|---|---|
| State | Accepted |
| Commit | b6b5c6426efe27cbd954409a50604d99c79bd42b |
| Headers | show |
| Series | ASoC: amd: ps: fix for acp_lock access in pdm driver | expand |
On Thu, 25 May 2023 16:59:55 +0530, Vijendar Mukunda wrote: > Sending the mutex address(acp_lock) as platform > data during ACP PDM platform driver register sequence, > its creating copy of the platform data. > Referencing this platform data in ACP PDM driver results > incorrect reference to the common lock usage. > > Instead of directly passing the lock address as platform > data, retrieve it from parent driver data structure > and use the same lock reference in ACP PDM driver. > > [...] Applied to https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next Thanks! [1/1] ASoC: amd: ps: fix for acp_lock access in pdm driver commit: b6b5c6426efe27cbd954409a50604d99c79bd42b All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted. You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed. If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced. Please add any relevant lists and maintainers to the CCs when replying to this mail. Thanks, Mark
diff --git a/sound/soc/amd/ps/pci-ps.c b/sound/soc/amd/ps/pci-ps.c index c957718abefc..54752d6040d6 100644 --- a/sound/soc/amd/ps/pci-ps.c +++ b/sound/soc/amd/ps/pci-ps.c @@ -198,8 +198,7 @@ static int create_acp63_platform_devs(struct pci_dev *pci, struct acp63_dev_data case ACP63_PDM_DEV_MASK: adata->pdm_dev_index = 0; acp63_fill_platform_dev_info(&pdevinfo[0], parent, NULL, "acp_ps_pdm_dma", - 0, adata->res, 1, &adata->acp_lock, - sizeof(adata->acp_lock)); + 0, adata->res, 1, NULL, 0); acp63_fill_platform_dev_info(&pdevinfo[1], parent, NULL, "dmic-codec", 0, NULL, 0, NULL, 0); acp63_fill_platform_dev_info(&pdevinfo[2], parent, NULL, "acp_ps_mach", diff --git a/sound/soc/amd/ps/ps-pdm-dma.c b/sound/soc/amd/ps/ps-pdm-dma.c index 3ecc6cf3fd34..bdbbb797c74d 100644 --- a/sound/soc/amd/ps/ps-pdm-dma.c +++ b/sound/soc/amd/ps/ps-pdm-dma.c @@ -358,12 +358,12 @@ static int acp63_pdm_audio_probe(struct platform_device *pdev) { struct resource *res; struct pdm_dev_data *adata; + struct acp63_dev_data *acp_data; + struct device *parent; int status; - if (!pdev->dev.platform_data) { - dev_err(&pdev->dev, "platform_data not retrieved\n"); - return -ENODEV; - } + parent = pdev->dev.parent; + acp_data = dev_get_drvdata(parent); res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) { dev_err(&pdev->dev, "IORESOURCE_MEM FAILED\n"); @@ -379,7 +379,7 @@ static int acp63_pdm_audio_probe(struct platform_device *pdev) return -ENOMEM; adata->capture_stream = NULL; - adata->acp_lock = pdev->dev.platform_data; + adata->acp_lock = &acp_data->acp_lock; dev_set_drvdata(&pdev->dev, adata); status = devm_snd_soc_register_component(&pdev->dev, &acp63_pdm_component,
Sending the mutex address(acp_lock) as platform data during ACP PDM platform driver register sequence, its creating copy of the platform data. Referencing this platform data in ACP PDM driver results incorrect reference to the common lock usage. Instead of directly passing the lock address as platform data, retrieve it from parent driver data structure and use the same lock reference in ACP PDM driver. Fixes: 45aa83cb9388 ("ASoC: amd: ps: use acp_lock to protect common registers in pdm driver") Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com> --- sound/soc/amd/ps/pci-ps.c | 3 +-- sound/soc/amd/ps/ps-pdm-dma.c | 10 +++++----- 2 files changed, 6 insertions(+), 7 deletions(-)