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author | Guoqing Jiang <gqjiang@suse.com> | 2018-06-11 11:03:44 +0200 |
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committer | Jes Sorensen <jsorensen@fb.com> | 2018-06-11 12:35:41 +0200 |
commit | 898bd1ecefe6c72102f398680dcfef80e4de21c1 (patch) | |
tree | 070d1e320818fe345503a00356fbcf191e80247a /Assemble.c | |
parent | imsm: correct num_data_stripes in metadata map for migration (diff) | |
download | mdadm-898bd1ecefe6c72102f398680dcfef80e4de21c1.tar.xz mdadm-898bd1ecefe6c72102f398680dcfef80e4de21c1.zip |
Free map to avoid resource leak issues
1. There are some places which didn't free map as
discovered by coverity.
CID 289661 (#1 of 1): Resource leak (RESOURCE_LEAK)12. leaked_storage: Variable mapl going out of scope leaks the storage it points to.
CID 289619 (#3 of 3): Resource leak (RESOURCE_LEAK)63. leaked_storage: Variable map going out of scope leaks the storage it points to.
CID 289618 (#1 of 1): Resource leak (RESOURCE_LEAK)26. leaked_storage: Variable map going out of scope leaks the storage it points to.
CID 289607 (#1 of 1): Resource leak (RESOURCE_LEAK)41. leaked_storage: Variable map going out of scope leaks the storage it points to.
2. If we call map_by_* inside a loop, then map_free
should be called in the same loop, and it is better
to set map to NULL after free.
3. And map_unlock is always called with map_lock,
if we don't call map_remove before map_unlock,
then the memory (allocated by map_lock -> map_read
-> map_add -> xmalloc) could be leaked. So we
need to free it in map_unlock as well.
Signed-off-by: Guoqing Jiang <gqjiang@suse.com>
Signed-off-by: Jes Sorensen <jsorensen@fb.com>
Diffstat (limited to 'Assemble.c')
-rw-r--r-- | Assemble.c | 2 |
1 files changed, 1 insertions, 1 deletions
@@ -1851,8 +1851,8 @@ try_again: if (rv == 1 && !pre_exist) ioctl(mdfd, STOP_ARRAY, NULL); free(devices); - map_unlock(&map); out: + map_unlock(&map); if (rv == 0) { wait_for(chosen_name, mdfd); close(mdfd); |