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authorAntoine Ténart2017-06-01 21:38:57 +0200
committerHerbert Xu2017-06-19 14:19:50 +0800
commit7e6df1f7a3a5f379b04eee177be0571beb32b811 (patch)
tree8fa9e18d5968c6b66fb8b03ebc931043a875bd8b
parent0f52ddaed6500d0b74fcaf5568726068d385129f (diff)
crypto: sun4i-ss - do not dynamically set parts of the last buffer to 0
Parts of the bf buffer were dynamically set to 0. Change this to set the whole buffer to 0 by default to avoid any mistake. Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Tested-by: Corentin Labbe <clabbe.montjoie@gmail.com> Acked-by: Corentin Labbe <clabbe.montjoie@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
-rw-r--r--drivers/crypto/sunxi-ss/sun4i-ss-hash.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/crypto/sunxi-ss/sun4i-ss-hash.c b/drivers/crypto/sunxi-ss/sun4i-ss-hash.c
index bc3cbde07219..518bc7a7df6a 100644
--- a/drivers/crypto/sunxi-ss/sun4i-ss-hash.c
+++ b/drivers/crypto/sunxi-ss/sun4i-ss-hash.c
@@ -179,7 +179,7 @@ static int sun4i_hash(struct ahash_request *areq)
*/
unsigned int i = 0, end, index, padlen, nwait, nbw = 0, j = 0, todo;
unsigned int in_i = 0;
- u32 spaces, rx_cnt = SS_RX_DEFAULT, bf[32], wb = 0, v, ivmode = 0;
+ u32 spaces, rx_cnt = SS_RX_DEFAULT, bf[32] = {0}, wb = 0, v, ivmode = 0;
struct sun4i_req_ctx *op = ahash_request_ctx(areq);
struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq);
struct sun4i_tfm_ctx *tfmctx = crypto_ahash_ctx(tfm);
@@ -417,7 +417,6 @@ hash_final:
zeros = (padlen - 1) / 4;
}
- memset(bf + j, 0, 4 * zeros);
j += zeros;
/* write the length of data */