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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Benjamin Marzinski <bmarzins@redhat.com>
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Date: Tue, 9 Feb 2021 17:16:04 -0600
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Subject: [PATCH] kpartx: free loop device after listing partitions
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If "kpartx -l" is run on a file that doesn't already have a loop device
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associated with it, it will create a loop device to run the command.
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Starting with da59d15c6 ("Fix loopback file with kpartx -av"), it will
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not free the loop device when exitting. This is because it checks if the
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the file it stat()ed is a regular file, before freeing the loop device.
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However, after da59d15c6, stat() is rerun on the loop device itself, so
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the check fails. There is no need to check this, if loopcreated is
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true, then the file will be a kpartx created loop device, and should be
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freed.
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Also, keep kpartx from printing that the loop device has been removed
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at normal verbosity.
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Fixes: da59d15c6 ("Fix loopback file with kpartx -av")
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Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
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---
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kpartx/kpartx.c | 9 +++++----
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1 file changed, 5 insertions(+), 4 deletions(-)
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diff --git a/kpartx/kpartx.c b/kpartx/kpartx.c
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index 653ce0c8..a337a07b 100644
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--- a/kpartx/kpartx.c
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+++ b/kpartx/kpartx.c
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@@ -407,7 +407,7 @@ main(int argc, char **argv){
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fprintf(stderr, "can't del loop : %s\n",
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loopdev);
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r = 1;
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- } else
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+ } else if (verbose)
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fprintf(stderr, "loop deleted : %s\n", loopdev);
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}
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goto end;
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@@ -649,16 +649,17 @@ main(int argc, char **argv){
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if (n > 0)
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break;
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}
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- if (what == LIST && loopcreated && S_ISREG (buf.st_mode)) {
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+ if (what == LIST && loopcreated) {
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if (fd != -1)
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close(fd);
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if (del_loop(device)) {
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if (verbose)
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- printf("can't del loop : %s\n",
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+ fprintf(stderr, "can't del loop : %s\n",
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device);
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exit(1);
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}
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- printf("loop deleted : %s\n", device);
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+ if (verbose)
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+ fprintf(stderr, "loop deleted : %s\n", device);
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}
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end:
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--
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2.17.2
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