From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Benjamin Marzinski Date: Wed, 24 Feb 2021 00:05:13 -0600 Subject: [PATCH] kpartx: free loop device after listing partitions If "kpartx -l" is run on a file that doesn't already have a loop device associated with it, it will create a loop device to run the command. Starting with da59d15c6 ("Fix loopback file with kpartx -av"), it will not free the loop device when exitting. This is because it checks if the the file it stat()ed is a regular file, before freeing the loop device. However, after da59d15c6, stat() is rerun on the loop device itself, so the check fails. There is no need to check this, if loopcreated is true, then the file will be a kpartx created loop device, and should be freed. Also, keep kpartx from printing that the loop device has been removed at normal verbosity. Fixes: da59d15c6 ("Fix loopback file with kpartx -av") Signed-off-by: Benjamin Marzinski Reviewed-by: Martin Wilck --- kpartx/kpartx.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/kpartx/kpartx.c b/kpartx/kpartx.c index 6a7933fa..8ff116b8 100644 --- a/kpartx/kpartx.c +++ b/kpartx/kpartx.c @@ -424,7 +424,7 @@ main(int argc, char **argv){ fprintf(stderr, "can't del loop : %s\n", loopdev); r = 1; - } else + } else if (verbose) fprintf(stderr, "loop deleted : %s\n", loopdev); } goto end; @@ -668,16 +668,17 @@ main(int argc, char **argv){ if (n > 0) break; } - if (what == LIST && loopcreated && S_ISREG (buf.st_mode)) { + if (what == LIST && loopcreated) { if (fd != -1) close(fd); if (del_loop(device)) { if (verbose) - printf("can't del loop : %s\n", + fprintf(stderr, "can't del loop : %s\n", device); exit(1); } - printf("loop deleted : %s\n", device); + if (verbose) + fprintf(stderr, "loop deleted : %s\n", device); } end: