[binutils-gdb/binutils-2_39-branch] libctf: Avoid use of uninitialised variables

[binutils-gdb/binutils-2_39-branch] libctf: Avoid use of uninitialised variables

[Alan Modra]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=27b28c705cf0412e5e7ddcf954352691fe5ba6ef

commit 27b28c705cf0412e5e7ddcf954352691fe5ba6ef
Author: Alan Modra <amodra@gmail.com>
Date:   Sun Jul 31 22:51:55 2022 +0930

    libctf: Avoid use of uninitialised variables
    
            * ctf-link.c (ctf_link_add_ctf_internal): Don't free uninitialised
            pointers.
    
    (cherry picked from commit 9ea6fffe1ebec9bd1929c708e044b765eabea258)

Diff:
---
 libctf/ctf-link.c | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/libctf/ctf-link.c b/libctf/ctf-link.c
index f2317302e26..702f2b4d5fe 100644
--- a/libctf/ctf-link.c
+++ b/libctf/ctf-link.c
@@ -114,7 +114,7 @@ ctf_link_add_ctf_internal (ctf_dict_t *fp, ctf_archive_t *ctf,
     goto oom;
 
   if ((input = calloc (1, sizeof (ctf_link_input_t))) == NULL)
-    goto oom;
+    goto oom1;
 
   input->clin_arc = ctf;
   input->clin_fp = fp_input;
@@ -125,19 +125,23 @@ ctf_link_add_ctf_internal (ctf_dict_t *fp, ctf_archive_t *ctf,
     {
       if (asprintf (&keyname, "%s#%li", name, (long int)
 		    ctf_dynhash_elements (fp->ctf_link_inputs)) < 0)
-	goto oom;
+	goto oom2;
     }
   else if ((keyname = strdup (name)) == NULL)
-    goto oom;
+    goto oom2;
 
   if (ctf_dynhash_insert (fp->ctf_link_inputs, keyname, input) < 0)
-    goto oom;
+    goto oom3;
 
   return 0;
- oom:
+
+ oom3:
+  free (keyname);
+ oom2:
   free (input);
+ oom1:
   free (filename);
-  free (keyname);
+ oom:
   return ctf_set_errno (fp, ENOMEM);
 }