4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Matthias Kaehlcke <m...@chromium.org>

commit 342e91578eb6909529bc7095964cd44b9c057c4e upstream.

'perms' will never be NULL since it isn't a plain pointer but an array
of u32 values.

This fixes the following warning when building with clang:

security/selinux/ss/services.c:158:16: error: address of array
'p_in->perms' will always evaluate to 'true'
[-Werror,-Wpointer-bool-conversion]
                while (p_in->perms && p_in->perms[k]) {

Signed-off-by: Matthias Kaehlcke <m...@chromium.org>
Signed-off-by: Paul Moore <p...@paul-moore.com>
Cc: Nathan Chancellor <natechancel...@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>

---
 security/selinux/ss/services.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/security/selinux/ss/services.c
+++ b/security/selinux/ss/services.c
@@ -155,7 +155,7 @@ static int selinux_set_mapping(struct po
                }
 
                k = 0;
-               while (p_in->perms && p_in->perms[k]) {
+               while (p_in->perms[k]) {
                        /* An empty permission string skips ahead */
                        if (!*p_in->perms[k]) {
                                k++;


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