[PATCH 2/2] pefile: Fix the failure of calculation for digest

[Lans Zhang]

The commit e68503bd forgot to set digest_len and thus cause the following
error reported by kexec when launching a crash kernel:
"kexec_file_load failed: Bad message"

Signed-off-by: Lans Zhang <jia.zhang at windriver.com>
Cc: David Howells <dhowells at redhat.com>
Cc: Dave Young <dyoung at redhat.com>
Cc: Baoquan He <bhe at redhat.com>
Cc: Vivek Goyal <vgoyal at redhat.com>
---
 crypto/asymmetric_keys/mscode_parser.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/crypto/asymmetric_keys/mscode_parser.c b/crypto/asymmetric_keys/mscode_parser.c
index 6a76d5c..9492e1c 100644
--- a/crypto/asymmetric_keys/mscode_parser.c
+++ b/crypto/asymmetric_keys/mscode_parser.c
@@ -124,5 +124,10 @@ int mscode_note_digest(void *context, size_t hdrlen,
 	struct pefile_context *ctx = context;
 
 	ctx->digest = kmemdup(value, vlen, GFP_KERNEL);
-	return ctx->digest ? 0 : -ENOMEM;
+	if (!ctx->digest)
+		return -ENOMEM;
+
+	ctx->digest_len = vlen;
+
+	return 0;
 }
-- 
1.9.1