From 7c0f812a5d65e712618af880dda4a5cc7ed79463 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Mon, 11 Mar 2013 12:02:13 -0300 Subject: [PATCH] [media] omap3isp: Defer probe when the IOMMU is not available When the OMAP3 ISP driver is compiled in the kernel the device can be probed before the corresponding IOMMU is available. Defer the probe in that case, and fix a crash in the error path. Reported-by: Javier Martin Signed-off-by: Laurent Pinchart Signed-off-by: Mauro Carvalho Chehab --- drivers/media/platform/omap3isp/isp.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/media/platform/omap3isp/isp.c b/drivers/media/platform/omap3isp/isp.c index 5a04077..ff5a20a 100644 --- a/drivers/media/platform/omap3isp/isp.c +++ b/drivers/media/platform/omap3isp/isp.c @@ -2249,6 +2249,7 @@ static int isp_probe(struct platform_device *pdev) ret = iommu_attach_device(isp->domain, &pdev->dev); if (ret) { dev_err(&pdev->dev, "can't attach iommu device: %d\n", ret); + ret = -EPROBE_DEFER; goto free_domain; } @@ -2287,6 +2288,7 @@ detach_dev: iommu_detach_device(isp->domain, &pdev->dev); free_domain: iommu_domain_free(isp->domain); + isp->domain = NULL; error_isp: isp_xclk_cleanup(isp); omap3isp_put(isp); -- 2.7.4