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VIA: Fix for oops when AGP ring-buffer initialization is called and there

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is no AGP memory acquired.
This commit is contained in:
Thomas Hellstrom 2005-05-08 20:33:04 +00:00
parent 6aae7bd5b0
commit e0fc400b68
4 changed files with 16 additions and 4 deletions
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6
shared-core/via_dma.c
View file

@ -188,6 +188,12 @@ static int via_initialize(drm_device_t * dev,
return DRM_ERR(EFAULT);
}
if (!dev->agp || !dev->agp->base) {
DRM_ERROR("%s called with no agp memory available\n",
__FUNCTION__);
return DRM_ERR(EFAULT);
}
dev_priv->ring.map.offset = dev->agp->base + init->offset;
dev_priv->ring.map.size = init->size;
dev_priv->ring.map.type = 0;

4
shared-core/via_drv.h
View file

@ -28,11 +28,11 @@
#define DRIVER_NAME "via"
#define DRIVER_DESC "VIA Unichrome / Pro"
#define DRIVER_DATE "20050420"
#define DRIVER_DATE "20050508"
#define DRIVER_MAJOR 2
#define DRIVER_MINOR 6
#define DRIVER_PATCHLEVEL 2
#define DRIVER_PATCHLEVEL 3
#include "via_verifier.h"

4
shared/via.h
View file

@ -30,11 +30,11 @@
#define DRIVER_NAME "via"
#define DRIVER_DESC "VIA Unichrome / Pro"
#define DRIVER_DATE "20050420"
#define DRIVER_DATE "20050508"
#define DRIVER_MAJOR 2
#define DRIVER_MINOR 6
#define DRIVER_PATCHLEVEL 2
#define DRIVER_PATCHLEVEL 3
#define DRIVER_IOCTLS \
[DRM_IOCTL_NR(DRM_IOCTL_VIA_ALLOCMEM)] = { via_mem_alloc, 1, 0 }, \

6
shared/via_dma.c
View file

@ -189,6 +189,12 @@ static int via_initialize(drm_device_t * dev,
return DRM_ERR(EFAULT);
}
if (!dev->agp || !dev->agp->base) {
DRM_ERROR("%s called with no agp memory available\n",
__FUNCTION__);
return DRM_ERR(EFAULT);
}
dev_priv->ring.map.offset = dev->agp->base + init->offset;
dev_priv->ring.map.size = init->size;
dev_priv->ring.map.type = 0;