From: Jim Meyering <meyering@redhat.com>
Date: Tue, 24 Feb 2009 14:46:27 +0000 (+0100)
Subject: blkid: don't dereference NULL upon slashless module dependency line
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0d4b490f79de86caca250ba2fee936e37cf6ec31;p=util-linux

blkid: don't dereference NULL upon slashless module dependency line

* probers/ext.c (check_for_modules): Skip current line if it has no slash.

[kzak@redhat.com: - port the original e2fsprogs patch to util-linux-ng]

Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Karel Zak <kzak@redhat.com>
---

diff --git a/libs/blkid/src/probers/ext.c b/libs/blkid/src/probers/ext.c
index 01ae7cc6..ff0e51b1 100644
--- a/libs/blkid/src/probers/ext.c
+++ b/libs/blkid/src/probers/ext.c
@@ -359,8 +359,9 @@ static int check_for_modules(const char *fs_name)
 			*cp = 0;
 		else
 			continue;
-		if ((cp = strrchr(buf, '/')) != NULL)
-			cp++;
+		if ((cp = strrchr(buf, '/')) == NULL)
+			continue;
+		cp++;
 		i = strlen(cp);
 		if (i > 3) {
 			t = cp + i - 3;