Author: dumbbell
Date: Sun Aug 25 10:04:10 2013
New Revision: 254838
URL: http://svnweb.freebsd.org/changeset/base/254838
Log:
drm: In drm_gem_name_create(), verify argument before acquiring lock
Submitted by: J.R. Oldroyd <j...@opal.com>
Modified:
head/sys/dev/drm2/drm_gem_names.c
Modified: head/sys/dev/drm2/drm_gem_names.c
==============================================================================
--- head/sys/dev/drm2/drm_gem_names.c Sun Aug 25 10:01:59 2013
(r254837)
+++ head/sys/dev/drm2/drm_gem_names.c Sun Aug 25 10:04:10 2013
(r254838)
@@ -132,12 +132,12 @@ drm_gem_name_create(struct drm_gem_names
{
struct drm_gem_name *np;
- np = malloc(sizeof(struct drm_gem_name), M_GEM_NAMES, M_WAITOK);
- mtx_lock(&names->lock);
if (*name != 0) {
- mtx_unlock(&names->lock);
return (EALREADY);
}
+
+ np = malloc(sizeof(struct drm_gem_name), M_GEM_NAMES, M_WAITOK);
+ mtx_lock(&names->lock);
np->name = alloc_unr(names->unr);
if (np->name == -1) {
mtx_unlock(&names->lock);
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