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* [PATCH] selinux: Remove unnecessary check of array base in selinux_set_mapping()
@ 2017-03-16 22:26 Matthias Kaehlcke
  2017-03-23  0:30 ` Grant Grundler
       [not found] ` <CANEJEGtObzAs4ZT70A_y_bLNujaNLxzOSPjrWRoY3wAR9211jw@mail.gmail.com>
  0 siblings, 2 replies; 5+ messages in thread
From: Matthias Kaehlcke @ 2017-03-16 22:26 UTC (permalink / raw)
  To: linux-security-module

'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 <mka@chromium.org>
---
 security/selinux/ss/services.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c
index 082b20c78363..2f20b5f974f4 100644
--- a/security/selinux/ss/services.c
+++ b/security/selinux/ss/services.c
@@ -155,7 +155,7 @@ static int selinux_set_mapping(struct policydb *pol,
 		}
 
 		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++;
-- 
2.12.0.367.g23dc2f6d3c-goog

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^ permalink raw reply related	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2017-03-29 22:59 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2017-03-16 22:26 [PATCH] selinux: Remove unnecessary check of array base in selinux_set_mapping() Matthias Kaehlcke
2017-03-23  0:30 ` Grant Grundler
     [not found] ` <CANEJEGtObzAs4ZT70A_y_bLNujaNLxzOSPjrWRoY3wAR9211jw@mail.gmail.com>
2017-03-23 12:08   ` Paul Moore
2017-03-23 17:34     ` Grant Grundler
2017-03-29 22:59       ` Paul Moore

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