From: Inki Dae <inki.dae@samsung.com>
To: airlied@linux.ie, dri-devel@lists.freedesktop.org
Cc: linux-samsung-soc@vger.kernel.org
Subject: [PATCH] drm/exynos: resolve infinite loop issue on non multi-platform
Date: Thu, 06 Nov 2014 23:10:07 +0900 [thread overview]
Message-ID: <1415283007-10096-1-git-send-email-inki.dae@samsung.com> (raw)
This patch resovles the infinite loop issue incurred
when Exyno drm driver is enabled but all kms drivers
are disabled on Exynos board by returning -EPROBE_DEFER
only in case that there is kms device registered.
Signed-off-by: Inki Dae <inki.dae@samsung.com>
---
drivers/gpu/drm/exynos/exynos_drm_drv.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c
index ecc86aa..14c6af7 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c
@@ -488,6 +488,12 @@ static struct component_match *exynos_drm_match_add(struct device *dev)
mutex_lock(&drm_component_lock);
+ /* Do not retry to probe if there is no any kms driver regitered. */
+ if (list_empty(&drm_component_list)) {
+ mutex_unlock(&drm_component_lock);
+ return ERR_PTR(-ENODEV);
+ }
+
list_for_each_entry(cdev, &drm_component_list, list) {
/*
* Add components to master only in case that crtc and
--
1.7.9.5
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next reply other threads:[~2014-11-06 14:10 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-06 14:10 Inki Dae [this message]
2014-11-06 15:44 ` [PATCH] drm/exynos: resolve infinite loop issue on non multi-platform Emil Velikov
2014-11-06 15:46 ` Emil Velikov
2014-11-06 17:08 ` Sjoerd Simons
2014-11-07 11:11 ` Andrzej Hajda
2014-11-07 16:27 ` Greg Kroah-Hartman
2014-11-07 8:29 ` Andrzej Hajda
2014-11-07 11:27 ` Inki Dae
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