[libbluray-devel] Fix check for app-provided log function

[hpi1]

libbluray | branch: master | hpi1 <hpi1 at anonymous.org> | Thu May  4 12:14:09 2017 +0300| [8d739e88df1ac337e949c4bb01852a8ed5de895f] | committer: hpi1

Fix check for app-provided log function

> http://git.videolan.org/gitweb.cgi/libbluray.git/?a=commit;h=8d739e88df1ac337e949c4bb01852a8ed5de895f
---

 src/util/logging.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/util/logging.c b/src/util/logging.c
index 62e6b59f..94ef131e 100644
--- a/src/util/logging.c
+++ b/src/util/logging.c
@@ -84,6 +84,7 @@ void bd_debug(const char *file, int line, uint32_t mask, const char *format, ...
         char buffer[4096];
         va_list args;
         int len, len2;
+        BD_LOG_FUNC lf;
 
         len = sprintf(buffer, "%s:%d: ", f ? f + 1 : file, line);
         if (len < 0) {
@@ -97,10 +98,10 @@ void bd_debug(const char *file, int line, uint32_t mask, const char *format, ...
         if (len2 < 0) {
             return;
         }
-
-        if (log_func) {
+        lf = log_func;
+        if (lf) {
             buffer[sizeof(buffer)-1] = 0;
-            log_func(buffer);
+            lf(buffer);
 
         } else {
             len += len2;