[PATCH 3/4] crypto: caamhash: add two missed dma_mapping_error
flat view
STALE4242d
From: <hidden>
Date: 2015-02-28 06:01:05
Also in:
lkml
Subsystem:
crypto api, freescale caam (cryptographic acceleration and assurance module) driver, the rest · Maintainers:
Herbert Xu, "David S. Miller", Horia Geantă, Pankaj Gupta, Gaurav Jain, Linus Torvalds
From: Yanjiang Jin <redacted> Add two missed dma_mapping_error() after dma_map_single(). Signed-off-by: Yanjiang Jin <redacted> --- drivers/crypto/caam/caamhash.c | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/drivers/crypto/caam/caamhash.c b/drivers/crypto/caam/caamhash.c
index f347ab7..f6ad322 100644
--- a/drivers/crypto/caam/caamhash.c
+++ b/drivers/crypto/caam/caamhash.c@@ -160,6 +160,10 @@ static inline dma_addr_t map_seq_out_ptr_result(u32 *desc, struct device *jrdev, dma_addr_t dst_dma; dst_dma = dma_map_single(jrdev, result, digestsize, DMA_FROM_DEVICE); + if (dma_mapping_error(jrdev, dst_dma)) { + dev_err(jrdev, "unable to map dst dma\n"); + return -ENOMEM; + } append_seq_out_ptr(desc, dst_dma, digestsize, 0); return dst_dma;
@@ -173,6 +177,10 @@ static inline dma_addr_t buf_map_to_sec4_sg(struct device *jrdev, dma_addr_t buf_dma; buf_dma = dma_map_single(jrdev, buf, buflen, DMA_TO_DEVICE); + if (dma_mapping_error(jrdev, buf_dma)) { + dev_err(jrdev, "unable to map buf dma\n"); + return 0; + } dma_to_sec4_sg_one(sec4_sg, buf_dma, buflen, 0); return buf_dma;
--
1.9.1