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 e80b58f2e270396fcd58022d749c00d265bd328c..b2d56575feafa10ef0285a2dd4171c7412c22ccb 100644 (file)
--- 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);