1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/isdn/i4l/isdn_ttyfax.c b/drivers/isdn/i4l/isdn_ttyfax.c
index f93de4a30355..78f7660c1d0e 100644
--- a/drivers/isdn/i4l/isdn_ttyfax.c
+++ b/drivers/isdn/i4l/isdn_ttyfax.c
@@ -906,7 +906,8 @@ isdn_tty_cmd_FCLASS2(char **p, modem_info * info)
                         sprintf(rs, "\r\n0-2");
                         isdn_tty_at_cout(rs, info);
                 } else {
-                        if ((f->phase != ISDN_FAX_PHASE_D) || (!info->faxonline & 1))
+                        if ((f->phase != ISDN_FAX_PHASE_D) ||
+                            (!(info->faxonline & 1)))
                                 PARSE_ERROR1;
                         par = isdn_getnum(p);
                         if ((par < 0) || (par > 2))