tree ebe65b14a8ecd961320cdf931eabff1f9eeb2847
parent 511a79129494483470ea18e294a71394f9588f42
author Arnaldo Carvalho de Melo <acme@redhat.com> 1562009443 -0300
committer Arnaldo Carvalho de Melo <acme@redhat.com> 1562009443 -0300

btf_loader: Plug leak when bailing out due to unknown tag

Fixes this coverity report:

  Error: RESOURCE_LEAK (CWE-772): [#def2]
  dwarves-1.13/btf_loader.c:342: alloc_fn: Storage is returned from allocation function "zalloc".
  dwarves-1.13/btf_loader.c:342: var_assign: Assigning: "tag" = storage returned from "zalloc(40UL)".
  dwarves-1.13/btf_loader.c:354: leaked_storage: Variable "tag" going out of scope leaks the storage it points to.
  #  352|   	default:
  #  353|   		printf("%s: FOO %d\n\n", __func__, type);
  #  354|-> 		return 0;
  #  355|   	}
  #  356|

Reported-by: William Cohen <wcohen@redhat.com>
Fixes: 472256d3c57b ("btf_loader: Introduce a loader for the BTF format")
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>