From: Denys Vlasenko <vda.linux@googlemail.com>
Date: Mon, 8 Sep 2014 16:19:15 +0000 (+0200)
Subject: mdev: treat zero-length /dev/mdev.seq the same as "\n" one. Closes 7334
X-Git-Tag: 1_23_0~52
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=26a8b9f1967d910033c516462c101100e041a9b4;p=oweals%2Fbusybox.git

mdev: treat zero-length /dev/mdev.seq the same as "\n" one. Closes 7334

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
---

diff --git a/util-linux/mdev.c b/util-linux/mdev.c
index e80b58f2e..b2d56575f 100644
--- a/util-linux/mdev.c
+++ b/util-linux/mdev.c
@@ -972,7 +972,7 @@ wait_for_seqfile(const char *seq)
 			break;
 		}
 		seqbuf[seqlen] = '\0';
-		if (seqbuf[0] == '\n') {
+		if (seqbuf[0] == '\n' || seqbuf[0] == '\0') {
 			/* seed file: write out seq ASAP */
 			xwrite_str(seq_fd, seq);
 			xlseek(seq_fd, 0, SEEK_SET);