mount.nfs: Don't leak mount_opts

A C string containing the user's requested mount options is constructed by
the main mount function in utils/mount/mount.c, but is never freed.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Neil Brown <neilb@suse.de>

diff --git a/utils/mount/mount.c b/utils/mount/mount.c
index fe2c48b4d0617d419ef48f756a4eb0656afe0d87..e6222317530da30c1ad56e2a217861d60cc2cdab 100644 (file)
--- a/utils/mount/mount.c
+++ b/utils/mount/mount.c
@@ -470,19 +470,19 @@ int main(int argc, char *argv[])
                                nfs_error(_("%s: Passing mount options via a"
                                        " string is unsupported by this"
                                        " kernel\n"), progname);
-                               exit(EX_USAGE);
+                               goto out_usage;
                        }
                        if (uid != 0) {
                                nfs_error(_("%s: -i option is restricted to 'root'\n"),
                                        progname);
-                               exit(EX_USAGE);
+                               goto out_usage;
                        }
                        ++string;
                        break;
                case 'h':
                default:
                        mount_usage();
-                       exit(EX_USAGE);
+                       goto out_usage;
                }
        }
 
@@ -491,7 +491,7 @@ int main(int argc, char *argv[])
         */
        if (optind != argc - 2) {
                mount_usage();
-               exit(EX_USAGE);
+               goto out_usage;
        }
 
        if (strcmp(progname, "mount.nfs4") == 0)
@@ -510,7 +510,7 @@ int main(int argc, char *argv[])
                    strcmp(mc->m.mnt_type, fs_type) != 0) {
                        nfs_error(_("%s: permission denied: no match for %s "
                                "found in /etc/fstab"), progname, mount_point);
-                       exit(EX_USAGE);
+                       goto out_usage;
                }
 
                /*
@@ -525,7 +525,7 @@ int main(int argc, char *argv[])
        mount_point = canonicalize(mount_point);
        if (!mount_point) {
                nfs_error(_("%s: no mount point provided"), progname);
-               exit(EX_USAGE);
+               goto out_usage;
        }
        if (mount_point[0] != '/') {
                nfs_error(_("%s: unrecognized mount point %s"),
@@ -575,7 +575,12 @@ int main(int argc, char *argv[])
        }
 
 out:
+       free(mount_opts);
        free(extra_opts);
        free(mount_point);
        exit(mnt_err);
+
+out_usage:
+       free(mount_opts);
+       exit(EX_USAGE);
 }