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    Subject[PATCH 1/9] selinux: check return value of sel_make_avc_files
    Date
    sel_make_avc_files() might fail and return a negative errno value on
    memory allocation failures. Re-add the check of the return value,
    dropped in 66f8e2f03c02.

    Reported by clang-analyzer:

    security/selinux/selinuxfs.c:2129:2: warning: Value stored to 'ret' is never read [deadcode.DeadStores]
    ret = sel_make_avc_files(dentry);
    ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~

    Fixes: 66f8e2f03c02 ("selinux: sidtab reverse lookup hash table")
    Signed-off-by: Christian Göttsche <cgzones@googlemail.com>
    ---
    security/selinux/selinuxfs.c | 2 ++
    1 file changed, 2 insertions(+)

    diff --git a/security/selinux/selinuxfs.c b/security/selinux/selinuxfs.c
    index e4cd7cb856f3..f2f6203e0fff 100644
    --- a/security/selinux/selinuxfs.c
    +++ b/security/selinux/selinuxfs.c
    @@ -2127,6 +2127,8 @@ static int sel_fill_super(struct super_block *sb, struct fs_context *fc)
    }

    ret = sel_make_avc_files(dentry);
    + if (ret)
    + goto err;

    dentry = sel_make_dir(sb->s_root, "ss", &fsi->last_ino);
    if (IS_ERR(dentry)) {
    --
    2.34.1
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