X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=lib%2Fbitmap.c;h=2c9242e3fed01ca348b4171db2c0d89333fa357e;hb=dc7d552705215ac50a0617fcf51bb9c736255b8e;hp=26ebafa8c41d7e0ff602c0d2137a8ea284bb1ae5;hpb=cb2ebc59ff52cee770cfd6ba5f23a6cc3c214648;p=linux-2.6

diff --git a/lib/bitmap.c b/lib/bitmap.c
index 26ebafa8c4..2c9242e3fe 100644
--- a/lib/bitmap.c
+++ b/lib/bitmap.c
@@ -469,6 +469,10 @@ int bitmap_scnlistprintf(char *buf, unsigned int buflen,
 	/* current bit is 'cur', most recently seen range is [rbot, rtop] */
 	int cur, rbot, rtop;
 
+	if (buflen == 0)
+		return 0;
+	buf[0] = 0;
+
 	rbot = cur = find_first_bit(maskp, nmaskbits);
 	while (cur < nmaskbits) {
 		rtop = cur;