Check if file descriptor is valid before passing it to get_dev_size() in add_to_super(). Signed-off-by: Mateusz Kusiak <mateusz.kusiak@xxxxxxxxx> --- super1.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/super1.c b/super1.c index 871d19f0398c..5439b7bb1240 100644 --- a/super1.c +++ b/super1.c @@ -1752,7 +1752,10 @@ static int add_to_super1(struct supertype *st, mdu_disk_info_t *dk, di->devname = devname; di->disk = *dk; di->data_offset = data_offset; - get_dev_size(fd, NULL, &di->dev_size); + + if (is_fd_valid(fd)) + get_dev_size(fd, NULL, &di->dev_size); + di->next = NULL; *dip = di; -- 2.35.3
