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| 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_gtt.c | |
| parent | b14c5679dd2c87b5bd14c49c5bdd1962be2ab209 (diff) | |
| download | lwn-a1e2265332e9344f913811ac6d2b84a506195bd8.tar.gz lwn-a1e2265332e9344f913811ac6d2b84a506195bd8.zip | |
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_gtt.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_gtt.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index 212f6d8c35ec..e999496532c6 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -336,7 +336,7 @@ static int gen6_ppgtt_init(struct i915_hw_ppgtt *ppgtt) ppgtt->base.insert_entries = gen6_ppgtt_insert_entries; ppgtt->base.cleanup = gen6_ppgtt_cleanup; ppgtt->base.scratch = dev_priv->gtt.base.scratch; - ppgtt->pt_pages = kzalloc(sizeof(struct page *)*ppgtt->num_pd_entries, + ppgtt->pt_pages = kcalloc(ppgtt->num_pd_entries, sizeof(struct page *), GFP_KERNEL); if (!ppgtt->pt_pages) return -ENOMEM; @@ -347,7 +347,7 @@ static int gen6_ppgtt_init(struct i915_hw_ppgtt *ppgtt) goto err_pt_alloc; } - ppgtt->pt_dma_addr = kzalloc(sizeof(dma_addr_t) *ppgtt->num_pd_entries, + ppgtt->pt_dma_addr = kcalloc(ppgtt->num_pd_entries, sizeof(dma_addr_t), GFP_KERNEL); if (!ppgtt->pt_dma_addr) goto err_pt_alloc; |