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| author | Antoine Tenart <antoine.tenart@free-electrons.com> | 2017-12-26 19:21:16 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-02-03 19:38:50 +0300 |
| commit | 199d97815d32acd0f1d20cbd04e39e3dead59a8b (patch) | |
| tree | 56ff7cbc203ce9264bdc30d9e81c08cc42d50d7f /crypto | |
| parent | bb9eec7b301eeb178fc1305708ae8902fa507953 (diff) | |
| download | linux-199d97815d32acd0f1d20cbd04e39e3dead59a8b.tar.xz | |
crypto: inside-secure - avoid unmapping DMA memory that was not mapped
commit c957f8b3e2e54b29f53ef69decc87bbc858c9b58 upstream.
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".
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'crypto')
0 files changed, 0 insertions, 0 deletions