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authorBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>2019-05-20 15:31:34 +0200
committerBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>2019-05-20 15:31:34 +0200
commitcd574ee16ffa2f2cad8414b9c59520e3e08a77f9 (patch)
tree8511c7a250b9bd6f6b0285f7fdfb05cd917c0373 /crypto/skcipher.c
parent831fd9fdce82ad6727c15552b430c5e54420d92f (diff)
parent8648646bd7927eccf4334248e94827d5dd47acf9 (diff)
downloadlinux-crypto-cd574ee16ffa2f2cad8414b9c59520e3e08a77f9.tar.gz
linux-crypto-cd574ee16ffa2f2cad8414b9c59520e3e08a77f9.zip
Merge tag 'v5.2-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into fbdev-for-next
Linux 5.2-rc1 Sync with upstream (which now contains fbdev-v5.2 changes) to prepare a base for fbdev-v5.3 changes.
Diffstat (limited to 'crypto/skcipher.c')
-rw-r--r--crypto/skcipher.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/crypto/skcipher.c b/crypto/skcipher.c
index bcf13d95..2e66f312 100644
--- a/crypto/skcipher.c
+++ b/crypto/skcipher.c
@@ -131,8 +131,13 @@ unmap_src:
memcpy(walk->dst.virt.addr, walk->page, n);
skcipher_unmap_dst(walk);
} else if (unlikely(walk->flags & SKCIPHER_WALK_SLOW)) {
- if (WARN_ON(err)) {
- /* unexpected case; didn't process all bytes */
+ if (err) {
+ /*
+ * Didn't process all bytes. Either the algorithm is
+ * broken, or this was the last step and it turned out
+ * the message wasn't evenly divisible into blocks but
+ * the algorithm requires it.
+ */
err = -EINVAL;
goto finish;
}