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| author | Antoine Ténart <antoine.tenart@free-electrons.com> | 2017-12-26 17:21:16 +0100 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2018-01-05 18:43:05 +1100 |
| commit | c957f8b3e2e54b29f53ef69decc87bbc858c9b58 (patch) | |
| tree | dd21c039ce87dad8711b670fe456b27dd7daa224 /crypto/proc.c | |
| parent | 0b5a7f71b4c557b15ec54a1b49023bc1b21044cc (diff) | |
| download | linux-c957f8b3e2e54b29f53ef69decc87bbc858c9b58.tar.bz2 | |
crypto: inside-secure - avoid unmapping DMA memory that was not mapped
This patch adds a parameter in the SafeXcel ahash request structure to
keep track of the number of SG entries mapped. This allows not to call
dma_unmap_sg() when dma_map_sg() wasn't called in the first place. This
also removes a warning when the debugging of the DMA-API is enabled in
the kernel configuration: "DMA-API: device driver tries to free DMA
memory it has not allocated".
Cc: stable@vger.kernel.org
Fixes: 1b44c5a60c13 ("crypto: inside-secure - add SafeXcel EIP197 crypto engine driver")
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/proc.c')
0 files changed, 0 insertions, 0 deletions