3.19.8-ckt1 -stable review patch. If anyone has any objections, please let me know.
------------------
From: =?UTF-8?q?Michel=20D=C3=A4nzer?= <michel.daenzer@xxxxxxx>
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@xxxxxxx>
Signed-off-by: Michel Dänzer <michel.daenzer@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Kamal Mostafa <kamal@xxxxxxxxxxxxx>
---
drivers/gpu/drm/radeon/radeon_cs.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/radeon/radeon_cs.c b/drivers/gpu/drm/radeon/radeon_cs.c
index 26e7d28..204a64a 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);
--
1.9.1
--
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