This is a note to let you know that I've just added the patch titled
[media] omap3isp: Defer probe when the IOMMU is not available
to the 3.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
omap3isp-defer-probe-when-the-iommu-is-not-available.patch
and it can be found in the queue-3.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 7c0f812a5d65e712618af880dda4a5cc7ed79463 Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
Date: Mon, 11 Mar 2013 12:02:13 -0300
Subject: [media] omap3isp: Defer probe when the IOMMU is not available
From: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
commit 7c0f812a5d65e712618af880dda4a5cc7ed79463 upstream.
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 <javier.martin@xxxxxxxxxxxxxxxxx>
Signed-off-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/media/platform/omap3isp/isp.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/media/platform/omap3isp/isp.c
+++ b/drivers/media/platform/omap3isp/isp.c
@@ -2249,6 +2249,7 @@ static int isp_probe(struct platform_dev
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);
Patches currently in stable-queue which might be from laurent.pinchart@xxxxxxxxxxxxxxxx are
queue-3.10/omap3isp-defer-probe-when-the-iommu-is-not-available.patch
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