[PATCH] crypto: sha512-mb - add some missing unlock on error

[Dan Carpenter]

We recently added some new locking but missed the unlocks on these
error paths in sha512_ctx_mgr_submit().

Fixes: c459bd7beda0 ("crypto: sha512-mb - Protect sha512 mb ctx mgr access")
Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>

diff --git a/arch/x86/crypto/sha512-mb/sha512_mb.c 
b/arch/x86/crypto/sha512-mb/sha512_mb.c
index 2dd3674b5a1e..458409b7568d 100644
--- a/arch/x86/crypto/sha512-mb/sha512_mb.c
+++ b/arch/x86/crypto/sha512-mb/sha512_mb.c
@@ -269,19 +269,19 @@ static struct sha512_hash_ctx
                 * LAST
                 */
                ctx->error = HASH_CTX_ERROR_INVALID_FLAGS;
-               return ctx;
+               goto unlock;
        }
 
        if (ctx->status & HASH_CTX_STS_PROCESSING) {
                /* Cannot submit to a currently processing job. */
                ctx->error = HASH_CTX_ERROR_ALREADY_PROCESSING;
-               return ctx;
+               goto unlock;
        }
 
        if ((ctx->status & HASH_CTX_STS_COMPLETE) && !(flags & HASH_FIRST)) {
                /* Cannot update a finished job. */
                ctx->error = HASH_CTX_ERROR_ALREADY_COMPLETED;
-               return ctx;
+               goto unlock;
        }
 
 
@@ -363,6 +363,7 @@ static struct sha512_hash_ctx
        }
 
        ctx = sha512_ctx_mgr_resubmit(mgr, ctx);
+unlock:
        spin_unlock_irqrestore(&cstate->work_lock, irqflags);
        return ctx;
 }