From a599c8d122cabfcd439ac6424a67f197c8178e7e Mon Sep 17 00:00:00 2001 From: Charles Longeau Date: Mon, 1 Sep 2008 17:50:16 +0000 Subject: fix null dereference. initial patch from me, reworked by oga@. found by LLVM/Clang Static Analyzer. ok oga@ --- sys/dev/pci/drm/drm_memory.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'sys/dev/pci') 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); -- cgit v1.2.3