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-rw-r--r--udev/lib/libudev-util.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/udev/lib/libudev-util.c b/udev/lib/libudev-util.c
index f4e78850f9..1cd18c8906 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++;