If you call "mdadm --detail" with a device file for an array which
doesn't exist, such as by
mknod /dev/md57 b 9 57
mdadm --detail /dev/md57
you get an unhelpful message about and inactive RAID0, and return
status is '0'. This is confusing.
So catch this possibility and print a more useful message, and
return a non-zero status.
Signed-off-by: NeilBrown <neilb@xxxxxxxx>
---
Detail.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/Detail.c b/Detail.c
index 509b0d418768..d9d1b7092167 100644
--- a/Detail.c
+++ b/Detail.c
@@ -110,6 +110,14 @@ int Detail(char *dev, struct context *c)
if (ioctl(fd, GET_ARRAY_INFO, &array) == 0) {
inactive = 0;
} else if (errno == ENODEV && sra) {
+ if (sra->array.major_version == -1 &&
+ sra->array.minor_version == -1 &&
+ sra->devs == NULL) {
+ pr_err("Array associated with md device %s does not exist.\n", dev);
+ close(fd);
+ sysfs_free(sra);
+ return rv;
+ }
array = sra->array;
inactive = 1;
} else {
--
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