diff options
| author | Gilad Ben-Yossef <gilad@benyossef.com> | 2018-01-07 12:14:22 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-01-08 16:27:23 +0100 |
| commit | 293edc27f8bc8a44978e9e95902b07b74f1c7523 (patch) | |
| tree | 5d16b6fedc0ddb9ebb90c34ba40d90ff39283e25 /drivers/staging/ccree | |
| parent | 7345b14deaf9b00a2d0458c0c958929ba58c9f7a (diff) | |
stating: ccree: revert "staging: ccree: fix leak of import() after init()"
This reverts commit c5f39d07860c ("staging: ccree: fix leak of import()
after init()") and commit aece09024414 ("staging: ccree: Uninitialized
return in ssi_ahash_import()").
This is the wrong solution and ends up relying on uninitialized memory,
although it was not obvious to me at the time.
Cc: stable@vger.kernel.org
Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/ccree')
| -rw-r--r-- | drivers/staging/ccree/ssi_hash.c | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/drivers/staging/ccree/ssi_hash.c b/drivers/staging/ccree/ssi_hash.c index ff05ac8eeb2c..ee7370c60426 100644 --- a/drivers/staging/ccree/ssi_hash.c +++ b/drivers/staging/ccree/ssi_hash.c @@ -1673,7 +1673,7 @@ static int cc_hash_import(struct ahash_request *req, const void *in) struct device *dev = drvdata_to_dev(ctx->drvdata); struct ahash_req_ctx *state = ahash_request_ctx(req); u32 tmp; - int rc = 0; + int rc; memcpy(&tmp, in, sizeof(u32)); if (tmp != CC_EXPORT_MAGIC) { @@ -1682,12 +1682,9 @@ static int cc_hash_import(struct ahash_request *req, const void *in) } in += sizeof(u32); - /* call init() to allocate bufs if the user hasn't */ - if (!state->digest_buff) { - rc = cc_hash_init(req); - if (rc) - goto out; - } + rc = cc_hash_init(req); + if (rc) + goto out; dma_sync_single_for_cpu(dev, state->digest_buff_dma_addr, ctx->inter_digestsize, DMA_BIDIRECTIONAL); |