From: Denis Efremov <efremov@linux.com>
Date: Tue, 27 Aug 2019 12:20:23 +0000 (+0300)
Subject: modpost: add NOFAIL to strndup
X-Git-Tag: v5.4-rc1~105^2~10
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6f02bdfc995f098bde87216c122ade2b46f971b5;p=thirdparty%2Flinux.git

modpost: add NOFAIL to strndup

Add NOFAIL check for the strndup call, because the function
allocates memory and can return NULL. All calls to strdup in
modpost are checked with NOFAIL.

Signed-off-by: Denis Efremov <efremov@linux.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
---

diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 2773f9f9bae28..76c221dd9b2b6 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -797,9 +797,9 @@ static int match(const char *sym, const char * const pat[])
 
 		/* "*foo*" */
 		if (*p == '*' && *endp == '*') {
-			char *here, *bare = strndup(p + 1, strlen(p) - 2);
+			char *bare = NOFAIL(strndup(p + 1, strlen(p) - 2));
+			char *here = strstr(sym, bare);
 
-			here = strstr(sym, bare);
 			free(bare);
 			if (here != NULL)
 				return 1;