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drm/radeon: Use drm_calloc_ab for CS relocs

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commit b421ed15d2c3039eb724680e4de1e4b2bd196a9a upstream.

The number of relocs is passed in by userspace and can be large. It has
been observed to cause kcalloc failures in the wild.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[lizf: Backported to 3.4: adjust context]
Signed-off-by: Zefan Li <lizefan@huawei.com>
This commit is contained in:
Michel Dänzer 2015-04-16 11:17:27 +09:00 committed by Zefan Li
parent 0243c10d33
commit 961bd13539
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/radeon/radeon_cs.c
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@ -49,7 +49,7 @@ int radeon_cs_parser_relocs(struct radeon_cs_parser *p)
if (p->relocs_ptr == NULL) {
return -ENOMEM;
}
p->relocs = kcalloc(p->nrelocs, sizeof(struct radeon_cs_reloc), GFP_KERNEL);
p->relocs = drm_calloc_large(p->nrelocs, sizeof(struct radeon_bo_list));
if (p->relocs == NULL) {
return -ENOMEM;
}
@ -324,7 +324,7 @@ static void radeon_cs_parser_fini(struct radeon_cs_parser *parser, int error)
}
}
kfree(parser->track);
kfree(parser->relocs);
drm_free_large(parser->relocs);
kfree(parser->relocs_ptr);
for (i = 0; i < parser->nchunks; i++) {
kfree(parser->chunks[i].kdata);