Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
crypto: qce - Return error for zero length messages
Crypto engine BAM dma does not support 0 length data. Return unsupported
if zero length messages are passed for transformation.
Signed-off-by: Thara Gopinath <thara.gopinath@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
authored by
Thara Gopinath
and committed by
Herbert Xu
f0878946
42f730a4
+5
+5
drivers/crypto/qce/skcipher.c
+5
drivers/crypto/qce/skcipher.c
···
8
8
#include <linux/interrupt.h>
9
9
#include <linux/moduleparam.h>
10
10
#include <linux/types.h>
11
+
#include <linux/errno.h>
11
12
#include <crypto/aes.h>
12
13
#include <crypto/internal/des.h>
13
14
#include <crypto/internal/skcipher.h>
···
260
259
rctx->flags = tmpl->alg_flags;
261
260
rctx->flags |= encrypt ? QCE_ENCRYPT : QCE_DECRYPT;
262
261
keylen = IS_XTS(rctx->flags) ? ctx->enc_keylen >> 1 : ctx->enc_keylen;
262
+
263
+
/* CE does not handle 0 length messages */
264
+
if (!req->cryptlen)
265
+
return 0;
263
266
264
267
/* qce is hanging when AES-XTS request len > QCE_SECTOR_SIZE and
265
268
* is not a multiple of it; pass such requests to the fallback