Only check for ENOMEDIUM when ENOMEDIUM is defined.

ENOMEDIUM is Linux-only. On other systems, the open call on a CD-ROM
device without any medium may be successful and a subsequent read may
return EINVAL instead. Let's just break out of the loop if ENOMEDIUM
isn't defined.

Signed-off-by: Cyril Brulebois <kibi@debian.org>
Signed-off-by: LaMont Jones <lamont@debian.org>

diff --git a/lib/fsprobe.c b/lib/fsprobe.c
index b47de0ec93f12d2f715fb493d6b4a93e6ef7650b..04360dc838b4e681829b90d6555511c9f94e600d 100644 (file)
--- a/lib/fsprobe.c
+++ b/lib/fsprobe.c
@@ -31,8 +31,13 @@ open_device(const char *devname)
                int fd = open(devname, O_RDONLY);
                if (fd >= 0)
                        return fd;
+#ifdef ENOMEDIUM
+               /* ENOMEDIUM is Linux-only */
                if (errno != ENOMEDIUM)
                        break;
+#else
+               break
+#endif
                if (retries >= CRDOM_NOMEDIUM_RETRIES)
                        break;
                ++retries;