From: Michel Dänzer Date: Thu, 16 Apr 2015 02:17:27 +0000 (+0900) Subject: drm/radeon: Use drm_calloc_ab for CS relocs X-Git-Tag: v4.1-rc2~2^2~2^2~11 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b421ed15d2c3039eb724680e4de1e4b2bd196a9a;p=platform%2Fkernel%2Flinux-exynos.git drm/radeon: Use drm_calloc_ab for CS relocs The number of relocs is passed in by userspace and can be large. It has been observed to cause kcalloc failures in the wild. Cc: stable@vger.kernel.org Reviewed-by: Christian König Signed-off-by: Michel Dänzer Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/radeon/radeon_cs.c b/drivers/gpu/drm/radeon/radeon_cs.c index 4d0f96c..ab39b85 100644 --- a/drivers/gpu/drm/radeon/radeon_cs.c +++ b/drivers/gpu/drm/radeon/radeon_cs.c @@ -88,7 +88,7 @@ static int radeon_cs_parser_relocs(struct radeon_cs_parser *p) p->dma_reloc_idx = 0; /* FIXME: we assume that each relocs use 4 dwords */ p->nrelocs = chunk->length_dw / 4; - p->relocs = kcalloc(p->nrelocs, sizeof(struct radeon_bo_list), GFP_KERNEL); + p->relocs = drm_calloc_large(p->nrelocs, sizeof(struct radeon_bo_list)); if (p->relocs == NULL) { return -ENOMEM; } @@ -428,7 +428,7 @@ static void radeon_cs_parser_fini(struct radeon_cs_parser *parser, int error, bo } } kfree(parser->track); - kfree(parser->relocs); + drm_free_large(parser->relocs); drm_free_large(parser->vm_bos); for (i = 0; i < parser->nchunks; i++) drm_free_large(parser->chunks[i].kdata);