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由 Christophe JAILLET 提交于
If 'dma_alloc_coherent()' returns NULL, 'vpu_alloc_ext_mem()' will return 0 which means success. Return -ENOMEM instead. Signed-off-by: NChristophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>
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