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| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2017-02-28 07:05:59 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2017-03-01 09:59:27 +0100 |
| commit | e7c95effcd3a7a0c9535c809141ca499fede2c31 (patch) | |
| tree | 443ed774218ce8d1f3b8b1dcf5bc12d84827f593 /arch/s390/crypto | |
| parent | 2d6be4abf514fc26c83d239c7f31da1f95e4a31d (diff) | |
| download | linux-e7c95effcd3a7a0c9535c809141ca499fede2c31.tar.bz2 | |
s390/crypt: fix missing unlock in ctr_paes_crypt on error path
The ctr mode of protected key aes uses the ctrblk page if the
ctrblk_lock could be acquired. If the protected key has to be
reestablished and this operation fails the unlock for the
ctrblk_lock is missing. Add it.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/crypto')
| -rw-r--r-- | arch/s390/crypto/paes_s390.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/s390/crypto/paes_s390.c b/arch/s390/crypto/paes_s390.c index d69ea495c4d7..716b17238599 100644 --- a/arch/s390/crypto/paes_s390.c +++ b/arch/s390/crypto/paes_s390.c @@ -474,8 +474,11 @@ static int ctr_paes_crypt(struct blkcipher_desc *desc, unsigned long modifier, ret = blkcipher_walk_done(desc, walk, nbytes - n); } if (k < n) { - if (__ctr_paes_set_key(ctx) != 0) + if (__ctr_paes_set_key(ctx) != 0) { + if (locked) + spin_unlock(&ctrblk_lock); return blkcipher_walk_done(desc, walk, -EIO); + } } } if (locked) |