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

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

1 files changed, 1 insertions, 1 deletions

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);