diff options
| author | Charles Longeau <chl@cvs.openbsd.org> | 2008-09-01 17:50:16 +0000 |
|---|---|---|
| committer | Charles Longeau <chl@cvs.openbsd.org> | 2008-09-01 17:50:16 +0000 |
| commit | a599c8d122cabfcd439ac6424a67f197c8178e7e (patch) | |
| tree | 68b3f43d591434a782564a400afe541a97db1ef7 /sys/dev/pci/drm/drm_memory.c | |
| parent | 48292a0394a03d736e1630c4e7eadf056fbfee42 (diff) | |
fix null dereference.
initial patch from me, reworked by oga@.
found by LLVM/Clang Static Analyzer.
ok oga@
Diffstat (limited to 'sys/dev/pci/drm/drm_memory.c')
| -rw-r--r-- | sys/dev/pci/drm/drm_memory.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/sys/dev/pci/drm/drm_memory.c b/sys/dev/pci/drm/drm_memory.c index 81dc4a10e98..a1eba523d7b 100644 --- a/sys/dev/pci/drm/drm_memory.c +++ b/sys/dev/pci/drm/drm_memory.c @@ -136,7 +136,10 @@ done: void drm_ioremapfree(drm_local_map_t *map) { - if (map != NULL && map->bsr != NULL) + if (map == NULL) + return; + + if (map->bsr != NULL) vga_pci_bar_unmap(map->bsr); else bus_space_unmap(map->bst, map->bsh, map->size); |