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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2015-10-19 18:23:57 +0800 |
|---|---|---|
| committer | Sasha Levin <sasha.levin@oracle.com> | 2015-11-15 12:51:52 -0500 |
| commit | 90a7b3b32dcbe54a40eea29a8c1308475ac9d7ab (patch) | |
| tree | 37c96fd7fe922385339ac467c0dedb71fc8086f1 /crypto | |
| parent | c07366111728efd1260452ef094c0a64d9c40f93 (diff) | |
| download | linux-stable-90a7b3b32dcbe54a40eea29a8c1308475ac9d7ab.tar.gz linux-stable-90a7b3b32dcbe54a40eea29a8c1308475ac9d7ab.tar.bz2 linux-stable-90a7b3b32dcbe54a40eea29a8c1308475ac9d7ab.zip | |
crypto: api - Only abort operations on fatal signal
[ Upstream commit 3fc89adb9fa4beff31374a4bf50b3d099d88ae83 ]
Currently a number of Crypto API operations may fail when a signal
occurs. This causes nasty problems as the caller of those operations
are often not in a good position to restart the operation.
In fact there is currently no need for those operations to be
interrupted by user signals at all. All we need is for them to
be killable.
This patch replaces the relevant calls of signal_pending with
fatal_signal_pending, and wait_for_completion_interruptible with
wait_for_completion_killable, respectively.
Cc: stable@vger.kernel.org
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Diffstat (limited to 'crypto')
| -rw-r--r-- | crypto/ablkcipher.c | 2 | ||||
| -rw-r--r-- | crypto/algapi.c | 2 | ||||
| -rw-r--r-- | crypto/api.c | 6 | ||||
| -rw-r--r-- | crypto/crypto_user.c | 2 |
4 files changed, 6 insertions, 6 deletions
diff --git a/crypto/ablkcipher.c b/crypto/ablkcipher.c index 40886c489903..520729d898fe 100644 --- a/crypto/ablkcipher.c +++ b/crypto/ablkcipher.c @@ -695,7 +695,7 @@ struct crypto_ablkcipher *crypto_alloc_ablkcipher(const char *alg_name, err: if (err != -EAGAIN) break; - if (signal_pending(current)) { + if (fatal_signal_pending(current)) { err = -EINTR; break; } diff --git a/crypto/algapi.c b/crypto/algapi.c index 71a8143e23b1..314cc745f2f8 100644 --- a/crypto/algapi.c +++ b/crypto/algapi.c @@ -337,7 +337,7 @@ static void crypto_wait_for_test(struct crypto_larval *larval) crypto_alg_tested(larval->alg.cra_driver_name, 0); } - err = wait_for_completion_interruptible(&larval->completion); + err = wait_for_completion_killable(&larval->completion); WARN_ON(err); out: diff --git a/crypto/api.c b/crypto/api.c index 2a81e98a0021..7db2e89a3114 100644 --- a/crypto/api.c +++ b/crypto/api.c @@ -172,7 +172,7 @@ static struct crypto_alg *crypto_larval_wait(struct crypto_alg *alg) struct crypto_larval *larval = (void *)alg; long timeout; - timeout = wait_for_completion_interruptible_timeout( + timeout = wait_for_completion_killable_timeout( &larval->completion, 60 * HZ); alg = larval->adult; @@ -435,7 +435,7 @@ struct crypto_tfm *crypto_alloc_base(const char *alg_name, u32 type, u32 mask) err: if (err != -EAGAIN) break; - if (signal_pending(current)) { + if (fatal_signal_pending(current)) { err = -EINTR; break; } @@ -552,7 +552,7 @@ void *crypto_alloc_tfm(const char *alg_name, err: if (err != -EAGAIN) break; - if (signal_pending(current)) { + if (fatal_signal_pending(current)) { err = -EINTR; break; } diff --git a/crypto/crypto_user.c b/crypto/crypto_user.c index e2a34feec7a4..c90af2537d24 100644 --- a/crypto/crypto_user.c +++ b/crypto/crypto_user.c @@ -367,7 +367,7 @@ static struct crypto_alg *crypto_user_aead_alg(const char *name, u32 type, err = PTR_ERR(alg); if (err != -EAGAIN) break; - if (signal_pending(current)) { + if (fatal_signal_pending(current)) { err = -EINTR; break; } |