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authorRabin Vincent <rabin.vincent@axis.com>2015-01-09 15:25:28 (GMT)
committerHerbert Xu <herbert@gondor.apana.org.au>2015-01-13 11:30:44 (GMT)
commit8a45ac12ec5b6ee67f8559c78ae11d9af8b821ee (patch)
tree6e3930b39740e7070c50dc62101340a3e634175c /crypto
parent8155330aad477c5b1337895a6922df76817f0874 (diff)
crypto: testmgr - don't use interruptible wait in tests
tcrypt/testmgr uses wait_for_completion_interruptible() everywhere when it waits for a request to be completed. If it's interrupted, then the test is aborted and the request is freed. However, if any of these calls actually do get interrupted, the result will likely be a kernel crash, when the driver handles the now-freed request. Use wait_for_completion() instead. Signed-off-by: Rabin Vincent <rabin.vincent@axis.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto')
-rw-r--r--crypto/tcrypt.c10
-rw-r--r--crypto/testmgr.c50
2 files changed, 26 insertions, 34 deletions
diff --git a/crypto/tcrypt.c b/crypto/tcrypt.c
index 1d864e9..0043495 100644
--- a/crypto/tcrypt.c
+++ b/crypto/tcrypt.c
@@ -764,10 +764,9 @@ static inline int do_one_ahash_op(struct ahash_request *req, int ret)
if (ret == -EINPROGRESS || ret == -EBUSY) {
struct tcrypt_result *tr = req->base.data;
- ret = wait_for_completion_interruptible(&tr->completion);
- if (!ret)
- ret = tr->err;
+ wait_for_completion(&tr->completion);
reinit_completion(&tr->completion);
+ ret = tr->err;
}
return ret;
}
@@ -993,10 +992,9 @@ static inline int do_one_acipher_op(struct ablkcipher_request *req, int ret)
if (ret == -EINPROGRESS || ret == -EBUSY) {
struct tcrypt_result *tr = req->base.data;
- ret = wait_for_completion_interruptible(&tr->completion);
- if (!ret)
- ret = tr->err;
+ wait_for_completion(&tr->completion);
reinit_completion(&tr->completion);
+ ret = tr->err;
}
return ret;
diff --git a/crypto/testmgr.c b/crypto/testmgr.c
index 037368d..235b1ff 100644
--- a/crypto/testmgr.c
+++ b/crypto/testmgr.c
@@ -181,10 +181,9 @@ static void testmgr_free_buf(char *buf[XBUFSIZE])
static int wait_async_op(struct tcrypt_result *tr, int ret)
{
if (ret == -EINPROGRESS || ret == -EBUSY) {
- ret = wait_for_completion_interruptible(&tr->completion);
- if (!ret)
- ret = tr->err;
+ wait_for_completion(&tr->completion);
reinit_completion(&tr->completion);
+ ret = tr->err;
}
return ret;
}
@@ -353,12 +352,11 @@ static int __test_hash(struct crypto_ahash *tfm, struct hash_testvec *template,
break;
case -EINPROGRESS:
case -EBUSY:
- ret = wait_for_completion_interruptible(
- &tresult.completion);
- if (!ret && !(ret = tresult.err)) {
- reinit_completion(&tresult.completion);
+ wait_for_completion(&tresult.completion);
+ reinit_completion(&tresult.completion);
+ ret = tresult.err;
+ if (!ret)
break;
- }
/* fall through */
default:
printk(KERN_ERR "alg: hash: digest failed "
@@ -569,12 +567,11 @@ static int __test_aead(struct crypto_aead *tfm, int enc,
break;
case -EINPROGRESS:
case -EBUSY:
- ret = wait_for_completion_interruptible(
- &result.completion);
- if (!ret && !(ret = result.err)) {
- reinit_completion(&result.completion);
+ wait_for_completion(&result.completion);
+ reinit_completion(&result.completion);
+ ret = result.err;
+ if (!ret)
break;
- }
case -EBADMSG:
if (template[i].novrfy)
/* verification failure was expected */
@@ -720,12 +717,11 @@ static int __test_aead(struct crypto_aead *tfm, int enc,
break;
case -EINPROGRESS:
case -EBUSY:
- ret = wait_for_completion_interruptible(
- &result.completion);
- if (!ret && !(ret = result.err)) {
- reinit_completion(&result.completion);
+ wait_for_completion(&result.completion);
+ reinit_completion(&result.completion);
+ ret = result.err;
+ if (!ret)
break;
- }
case -EBADMSG:
if (template[i].novrfy)
/* verification failure was expected */
@@ -1002,12 +998,11 @@ static int __test_skcipher(struct crypto_ablkcipher *tfm, int enc,
break;
case -EINPROGRESS:
case -EBUSY:
- ret = wait_for_completion_interruptible(
- &result.completion);
- if (!ret && !((ret = result.err))) {
- reinit_completion(&result.completion);
+ wait_for_completion(&result.completion);
+ reinit_completion(&result.completion);
+ ret = result.err;
+ if (!ret)
break;
- }
/* fall through */
default:
pr_err("alg: skcipher%s: %s failed on test %d for %s: ret=%d\n",
@@ -1097,12 +1092,11 @@ static int __test_skcipher(struct crypto_ablkcipher *tfm, int enc,
break;
case -EINPROGRESS:
case -EBUSY:
- ret = wait_for_completion_interruptible(
- &result.completion);
- if (!ret && !((ret = result.err))) {
- reinit_completion(&result.completion);
+ wait_for_completion(&result.completion);
+ reinit_completion(&result.completion);
+ ret = result.err;
+ if (!ret)
break;
- }
/* fall through */
default:
pr_err("alg: skcipher%s: %s failed on chunk test %d for %s: ret=%d\n",

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