diff options
| author | Owain Ainsworth <oga@cvs.openbsd.org> | 2010-04-16 16:27:13 +0000 |
|---|---|---|
| committer | Owain Ainsworth <oga@cvs.openbsd.org> | 2010-04-16 16:27:13 +0000 |
| commit | a0196aea407b6554fb24d172182d8d2f91605485 (patch) | |
| tree | 929fd2d1e533034bbb82dbc60aacafe9125de58f /sys | |
| parent | 56298d6a3015debdb37655367774bafa2e2519ac (diff) | |
paranoia: NULL check before free.
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/dev/pci/drm/i915_drv.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sys/dev/pci/drm/i915_drv.c b/sys/dev/pci/drm/i915_drv.c index fefd718aeb6..3b5454141c5 100644 --- a/sys/dev/pci/drm/i915_drv.c +++ b/sys/dev/pci/drm/i915_drv.c @@ -4133,7 +4133,8 @@ inteldrm_teardown_mchbar(struct drm_i915_private *dev_priv, high = pci_conf_read(bpa->pa_pc, bpa->pa_tag, reg + 4); low = pci_conf_read(bpa->pa_pc, bpa->pa_tag, reg); mchbar_addr = ((u_int64_t)high << 32) | low; - extent_free(bpa->pa_memex, mchbar_addr, MCHBAR_SIZE, 0); + if (bpa->pa_memex) + extent_free(bpa->pa_memex, mchbar_addr, MCHBAR_SIZE, 0); /* FALLTHROUGH */ case 1: if (IS_I915G(dev_priv) || IS_I915GM(dev_priv)) { |