diff options
author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-09-21 00:35:38 +0200 |
---|---|---|
committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-10-01 07:45:01 +0200 |
commit | a1e2265332e9344f913811ac6d2b84a506195bd8 (patch) | |
tree | 1f82916b260bab33709e55bd7611018dfb035c18 /drivers/gpu/drm/i915/i915_gem_execbuffer.c | |
parent | b14c5679dd2c87b5bd14c49c5bdd1962be2ab209 (diff) |
drm/i915: Use kcalloc more
No buffer overflows here, but better safe than sorry.
v2:
- Fixup the sizeof conversion, I've missed the pointer deref (Jani).
- Drop the redundant GFP_ZERO, kcalloc alreads memsets (Jani).
- Use kmalloc_array for the execbuf fastpath to avoid the memset
(Chris). I've opted to leave all other conversions as-is since they
aren't in a fastpath and dealing with cleared memory instead of
random garbage is just generally nicer.
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
[danvet: Drop the contentious kmalloc_array hunk in execbuf.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_execbuffer.c')
-rw-r--r-- | drivers/gpu/drm/i915/i915_gem_execbuffer.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c index ee933572bdc..b87107e73c0 100644 --- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c +++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c @@ -1047,7 +1047,8 @@ i915_gem_do_execbuffer(struct drm_device *dev, void *data, return -EINVAL; } - cliprects = kmalloc(args->num_cliprects * sizeof(*cliprects), + cliprects = kcalloc(args->num_cliprects, + sizeof(*cliprects), GFP_KERNEL); if (cliprects == NULL) { ret = -ENOMEM; |