diff --git a/libc/bionic/libc_logging.cpp b/libc/bionic/libc_logging.cpp
index 88d9790..cdbf723 100644
--- a/libc/bionic/libc_logging.cpp
+++ b/libc/bionic/libc_logging.cpp
@@ -230,6 +230,7 @@
 /* Perform formatted output to an output target 'o' */
 template <typename Out>
 static void out_vformat(Out& o, const char* format, va_list args) {
+    int caller_errno = errno;
     int nn = 0;
 
     for (;;) {
@@ -380,7 +381,7 @@
             buffer[1] = '\0';
         } else if (c == 'm') {
             // syslog-like %m for strerror(errno).
-            str = strerror(errno);
+            str = strerror(caller_errno);
         } else {
             __assert(__FILE__, __LINE__, "conversion specifier unsupported");
         }
diff --git a/libc/bionic/syslog.cpp b/libc/bionic/syslog.cpp
index 7e153eb..29f892a 100644
--- a/libc/bionic/syslog.cpp
+++ b/libc/bionic/syslog.cpp
@@ -14,9 +14,8 @@
  * limitations under the License.
  */
 
-#include <syslog.h>
-
 #include <stdlib.h>
+#include <syslog.h>
 
 #include "private/libc_logging.h"
 
@@ -24,6 +23,7 @@
 static int syslog_priority_mask = 0xff;
 
 void closelog() {
+  syslog_log_tag = NULL;
 }
 
 void openlog(const char* log_tag, int /*options*/, int /*facility*/) {
@@ -61,7 +61,7 @@
   // What's our Android log priority?
   priority &= LOG_PRIMASK;
   int android_log_priority;
-  if (priority < LOG_ERR) {
+  if (priority <= LOG_ERR) {
     android_log_priority = ANDROID_LOG_ERROR;
   } else if (priority == LOG_WARNING) {
     android_log_priority = ANDROID_LOG_WARN;