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mdadm
0021-Detail-handle-non-existent-arrays-better.p...
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File 0021-Detail-handle-non-existent-arrays-better.patch of Package mdadm
From b4decd517d90098bc2d17d3eddfe858d8b903920 Mon Sep 17 00:00:00 2001 From: NeilBrown <neilb@suse.com> Date: Mon, 27 Mar 2017 14:36:56 +1100 Subject: [PATCH] Detail: handle non-existent arrays better. References: bsc#966773 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@suse.com> Signed-off-by: Jes Sorensen <Jes.Sorensen@gmail.com> --- Detail.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/Detail.c b/Detail.c index cb33794..3d92855 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 { -- 2.10.2
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