X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=udev%2Flib%2Flibudev-util.c;h=1cd18c890696968e8684dc0610486174b5277210;hb=bbfaec2b2f43ddf7b8ef42a2a687f536ac445183;hp=f4e78850f9315ea17924f7bbb6c872c218eb3f2f;hpb=24239ded2d7a152d1c428880ae2cf82d904a350d;p=elogind.git

diff --git a/udev/lib/libudev-util.c b/udev/lib/libudev-util.c
index f4e78850f..1cd18c890 100644
--- a/udev/lib/libudev-util.c
+++ b/udev/lib/libudev-util.c
@@ -398,7 +398,7 @@ int udev_util_replace_chars(char *str, const char *white)
 		}
 
 		/* if space is allowed, replace whitespace with ordinary space */
-		if (isspace(str[i]) && strchr(white, ' ') != NULL) {
+		if (isspace(str[i]) && white != NULL && strchr(white, ' ') != NULL) {
 			str[i] = ' ';
 			i++;
 			replaced++;