From a172ee2a18b715a6de9b8e914aecd8414a4f3b2d Mon Sep 17 00:00:00 2001
From: Eric Anholt <anholt@freebsd.org>
Date: Sat, 26 Apr 2003 23:04:22 +0000
Subject: MFL: Don't install irq handler unless the driver has been
initialized.
---
bsd-core/drm_dma.c | 3 +++
bsd/drm_dma.h | 3 +++
2 files changed, 6 insertions(+)
diff --git a/bsd-core/drm_dma.c b/bsd-core/drm_dma.c
index 526faee2..10c26e37 100644
--- a/bsd-core/drm_dma.c
+++ b/bsd-core/drm_dma.c
@@ -160,6 +160,9 @@ int DRM(irq_install)( drm_device_t *dev, int irq )
if ( !irq )
return DRM_ERR(EINVAL);
+ if (dev->dev_private == NULL)
+ return DRM_ERR(EINVAL);
+
DRM_LOCK;
if ( dev->irq ) {
DRM_UNLOCK;
diff --git a/bsd/drm_dma.h b/bsd/drm_dma.h
index 526faee2..10c26e37 100644
--- a/bsd/drm_dma.h
+++ b/bsd/drm_dma.h
@@ -160,6 +160,9 @@ int DRM(irq_install)( drm_device_t *dev, int irq )
if ( !irq )
return DRM_ERR(EINVAL);
+ if (dev->dev_private == NULL)
+ return DRM_ERR(EINVAL);
+
DRM_LOCK;
if ( dev->irq ) {
DRM_UNLOCK;
--
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