crypto: ccp - use dma_mapping_error to check map error
authorPan Bian <bianpan2016@163.com>
Tue, 8 Aug 2017 13:42:47 +0000 (21:42 +0800)
committerHerbert Xu <herbert@gondor.apana.org.au>
Thu, 17 Aug 2017 08:53:33 +0000 (16:53 +0800)
commitef4064bb3f6a1037cbda8d025f564aab5bd2de35
tree5a78aee0fd343ea43a1a409c672806be8bcdb8d3
parentdea632cadd129d1901efde6b1167a6250b2157fb
crypto: ccp - use dma_mapping_error to check map error

The return value of dma_map_single() should be checked by
dma_mapping_error(). However, in function ccp_init_dm_workarea(), its
return value is checked against NULL, which could result in failures.

Signed-off-by: Pan Bian <bianpan2016@163.com>
Acked-by: Gary R Hook <gary.hook@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
drivers/crypto/ccp/ccp-ops.c