From e8307ec51efebf579da5966aa5da5ab5353c61c7 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Wed, 2 Oct 2019 17:29:46 +0200 Subject: mmc: renesas_sdhi: Do not use platform_get_irq() to count interrupts As platform_get_irq() now prints an error when the interrupt does not exist, counting interrupts by looping until failure causes the printing of scary messages like: renesas_sdhi_internal_dmac ee140000.sd: IRQ index 1 not found Fix this by using the platform_irq_count() helper to avoid touching non-existent interrupts. Fixes: 7723f4c5ecdb8d83 ("driver core: platform: Add an error message to platform_get_irq*()") Signed-off-by: Geert Uytterhoeven Reviewed-by: Yoshihiro Shimoda Reviewed-by: Wolfram Sang Tested-by: Yoshihiro Shimoda Tested-by: Wolfram Sang Signed-off-by: Ulf Hansson --- drivers/mmc/host/renesas_sdhi_core.c | 31 +++++++++++++++++++------------ 1 file changed, 19 insertions(+), 12 deletions(-) (limited to 'drivers/mmc/host/renesas_sdhi_core.c') diff --git a/drivers/mmc/host/renesas_sdhi_core.c b/drivers/mmc/host/renesas_sdhi_core.c index d4ada5cca2d1..234551a68739 100644 --- a/drivers/mmc/host/renesas_sdhi_core.c +++ b/drivers/mmc/host/renesas_sdhi_core.c @@ -646,8 +646,8 @@ int renesas_sdhi_probe(struct platform_device *pdev, struct tmio_mmc_dma *dma_priv; struct tmio_mmc_host *host; struct renesas_sdhi *priv; + int num_irqs, irq, ret, i; struct resource *res; - int irq, ret, i; u16 ver; of_data = of_device_get_match_data(&pdev->dev); @@ -825,24 +825,31 @@ int renesas_sdhi_probe(struct platform_device *pdev, host->hs400_complete = renesas_sdhi_hs400_complete; } - i = 0; - while (1) { + num_irqs = platform_irq_count(pdev); + if (num_irqs < 0) { + ret = num_irqs; + goto eirq; + } + + /* There must be at least one IRQ source */ + if (!num_irqs) { + ret = -ENXIO; + goto eirq; + } + + for (i = 0; i < num_irqs; i++) { irq = platform_get_irq(pdev, i); - if (irq < 0) - break; - i++; + if (irq < 0) { + ret = irq; + goto eirq; + } + ret = devm_request_irq(&pdev->dev, irq, tmio_mmc_irq, 0, dev_name(&pdev->dev), host); if (ret) goto eirq; } - /* There must be at least one IRQ source */ - if (!i) { - ret = irq; - goto eirq; - } - dev_info(&pdev->dev, "%s base at 0x%08lx max clock rate %u MHz\n", mmc_hostname(host->mmc), (unsigned long) (platform_get_resource(pdev, IORESOURCE_MEM, 0)->start), -- cgit