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| author | Leif Delgass <ldelgass@users.sourceforge.net> | 2003-04-21 16:07:17 +0000 |
|---|---|---|
| committer | Leif Delgass <ldelgass@users.sourceforge.net> | 2003-04-21 16:07:17 +0000 |
| commit | 46e06192a88834a97257d2be5ab3aa7c325a1cfe (patch) | |
| tree | 3a77c3f79e6415aaff35c6fbd22f256269ced8a0 /shared-core/mga_dma.c | |
| parent | da35a90d99cf56a8ffc48f87754013d13e1cafcd (diff) | |
Check for NULL map before calling DRM(ioremapfree) on cleanup. Prevents an
oops if a map wasn't found (e.g. XFree86 Bugzilla #108)
Diffstat (limited to 'shared-core/mga_dma.c')
| -rw-r--r-- | shared-core/mga_dma.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/shared-core/mga_dma.c b/shared-core/mga_dma.c index 5e95c9f9..96fd97ff 100644 --- a/shared-core/mga_dma.c +++ b/shared-core/mga_dma.c @@ -642,9 +642,12 @@ int mga_do_cleanup_dma( drm_device_t *dev ) if ( dev->dev_private ) { drm_mga_private_t *dev_priv = dev->dev_private; - DRM_IOREMAPFREE( dev_priv->warp ); - DRM_IOREMAPFREE( dev_priv->primary ); - DRM_IOREMAPFREE( dev_priv->buffers ); + if ( dev_priv->warp != NULL ) + DRM_IOREMAPFREE( dev_priv->warp ); + if ( dev_priv->primary != NULL ) + DRM_IOREMAPFREE( dev_priv->primary ); + if ( dev_priv->buffers != NULL ) + DRM_IOREMAPFREE( dev_priv->buffers ); if ( dev_priv->head != NULL ) { mga_freelist_cleanup( dev ); |