From: Mark Wielaard <mark@klomp.org>
Date: Thu, 9 Jun 2022 20:51:56 +0000 (+0200)
Subject: syswrap-linux.c (sys_bpf): Compare raw_tracepoint.name against 0, not NULL
X-Git-Tag: VALGRIND_3_20_0~43
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=438d5e956dfa989184fcd4c18d7db534f65b75b6;p=thirdparty%2Fvalgrind.git

syswrap-linux.c (sys_bpf): Compare raw_tracepoint.name against 0, not NULL

raw_tracepoint.name is a __vki_u64 (even on 32bit arches), so compare
against zero, not NULL, to avoid a gcc warning.
---

diff --git a/coregrind/m_syswrap/syswrap-linux.c b/coregrind/m_syswrap/syswrap-linux.c
index 70aaec2f2d..04502f6257 100644
--- a/coregrind/m_syswrap/syswrap-linux.c
+++ b/coregrind/m_syswrap/syswrap-linux.c
@@ -12938,7 +12938,7 @@ PRE(sys_bpf)
                break;
             }
             /* Name is limited to 128 characters in kernel/bpf/syscall.c. */
-            if (attr->raw_tracepoint.name != NULL)
+            if (attr->raw_tracepoint.name != 0)
                pre_asciiz_str(tid, attr->raw_tracepoint.name, 128,
                               "bpf(attr->raw_tracepoint.name)");
          }