dma_mapping_error checks for an incorrect DMA address:
s/ctx->sh_desc_enc_dma/ctx->sh_desc_dec_dma
Signed-off-by: NHoria Geanta <horia.geanta@freescale.com>
Acked-by: NKim Phillips <kim.phillips@freescale.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>