diff --git a/arch/arm/src/arm/arm_assert.c b/arch/arm/src/arm/arm_assert.c
index 70379ee88d0..fdd9b3edf76 100644
--- a/arch/arm/src/arm/arm_assert.c
+++ b/arch/arm/src/arm/arm_assert.c
@@ -166,12 +166,11 @@ static inline void up_registerdump(void)
 static int usbtrace_syslog(FAR const char *fmt, ...)
 {
   va_list ap;
-  int ret;
 
-  /* Let nx_vsyslog do the real work */
+  /* Let vsyslog do the real work */
 
   va_start(ap, fmt);
-  ret = nx_vsyslog(LOG_EMERG, fmt, &ap);
+  vsyslog(LOG_EMERG, fmt, ap);
   va_end(ap);
   return OK;
 }
diff --git a/arch/arm/src/armv6-m/arm_assert.c b/arch/arm/src/armv6-m/arm_assert.c
index e8aa30cb7fb..75a58ee4b14 100644
--- a/arch/arm/src/armv6-m/arm_assert.c
+++ b/arch/arm/src/armv6-m/arm_assert.c
@@ -203,14 +203,13 @@ static inline void up_registerdump(void)
 static int usbtrace_syslog(FAR const char *fmt, ...)
 {
   va_list ap;
-  int ret;
 
-  /* Let nx_vsyslog do the real work */
+  /* Let vsyslog do the real work */
 
   va_start(ap, fmt);
-  ret = nx_vsyslog(LOG_EMERG, fmt, &ap);
+  vsyslog(LOG_EMERG, fmt, ap);
   va_end(ap);
-  return ret;
+  return OK;
 }
 
 static int assert_tracecallback(FAR struct usbtrace_s *trace, FAR void *arg)
diff --git a/arch/arm/src/armv7-a/arm_assert.c b/arch/arm/src/armv7-a/arm_assert.c
index 16949eed6c2..f66f02867b2 100644
--- a/arch/arm/src/armv7-a/arm_assert.c
+++ b/arch/arm/src/armv7-a/arm_assert.c
@@ -188,14 +188,13 @@ static inline void up_registerdump(void)
 static int usbtrace_syslog(FAR const char *fmt, ...)
 {
   va_list ap;
-  int ret;
 
-  /* Let nx_vsyslog do the real work */
+  /* Let vsyslog do the real work */
 
   va_start(ap, fmt);
-  ret = nx_vsyslog(LOG_EMERG, fmt, &ap);
+  vsyslog(LOG_EMERG, fmt, ap);
   va_end(ap);
-  return ret;
+  return OK;
 }
 
 static int assert_tracecallback(FAR struct usbtrace_s *trace, FAR void *arg)
diff --git a/arch/arm/src/armv7-m/arm_assert.c b/arch/arm/src/armv7-m/arm_assert.c
index bad4de16b26..6a62e7aae3a 100644
--- a/arch/arm/src/armv7-m/arm_assert.c
+++ b/arch/arm/src/armv7-m/arm_assert.c
@@ -196,14 +196,13 @@ static inline void up_registerdump(void)
 static int usbtrace_syslog(FAR const char *fmt, ...)
 {
   va_list ap;
-  int ret;
 
-  /* Let nx_vsyslog do the real work */
+  /* Let vsyslog do the real work */
 
   va_start(ap, fmt);
-  ret = nx_vsyslog(LOG_EMERG, fmt, &ap);
+  vsyslog(LOG_EMERG, fmt, ap);
   va_end(ap);
-  return ret;
+  return OK;
 }
 
 static int assert_tracecallback(FAR struct usbtrace_s *trace, FAR void *arg)
diff --git a/arch/arm/src/armv7-r/arm_assert.c b/arch/arm/src/armv7-r/arm_assert.c
index a8a65f14d0a..d00dc6de2a5 100644
--- a/arch/arm/src/armv7-r/arm_assert.c
+++ b/arch/arm/src/armv7-r/arm_assert.c
@@ -185,14 +185,13 @@ static inline void up_registerdump(void)
 static int usbtrace_syslog(FAR const char *fmt, ...)
 {
   va_list ap;
-  int ret;
 
-  /* Let nx_vsyslog do the real work */
+  /* Let vsyslog do the real work */
 
   va_start(ap, fmt);
-  ret = nx_vsyslog(LOG_EMERG, fmt, &ap);
+  vsyslog(LOG_EMERG, fmt, ap);
   va_end(ap);
-  return ret;
+  return OK;
 }
 
 static int assert_tracecallback(FAR struct usbtrace_s *trace, FAR void *arg)
diff --git a/arch/arm/src/armv8-m/arm_assert.c b/arch/arm/src/armv8-m/arm_assert.c
index ae074943249..514fbb0ed74 100755
--- a/arch/arm/src/armv8-m/arm_assert.c
+++ b/arch/arm/src/armv8-m/arm_assert.c
@@ -196,14 +196,13 @@ static inline void up_registerdump(void)
 static int usbtrace_syslog(FAR const char *fmt, ...)
 {
   va_list ap;
-  int ret;
 
-  /* Let nx_vsyslog do the real work */
+  /* Let vsyslog do the real work */
 
   va_start(ap, fmt);
-  ret = nx_vsyslog(LOG_EMERG, fmt, &ap);
+  vsyslog(LOG_EMERG, fmt, ap);
   va_end(ap);
-  return ret;
+  return OK;
 }
 
 static int assert_tracecallback(FAR struct usbtrace_s *trace, FAR void *arg)
diff --git a/arch/avr/src/common/up_assert.c b/arch/avr/src/common/up_assert.c
index ac5af18a9dc..6849a00e78f 100644
--- a/arch/avr/src/common/up_assert.c
+++ b/arch/avr/src/common/up_assert.c
@@ -120,14 +120,13 @@ static void _up_assert(int errorcode)
 static int usbtrace_syslog(FAR const char *fmt, ...)
 {
   va_list ap;
-  int ret;
 
-  /* Let nx_vsyslog do the real work */
+  /* Let vsyslog do the real work */
 
   va_start(ap, fmt);
-  ret = nx_vsyslog(LOG_EMERG, fmt, &ap);
+  vsyslog(LOG_EMERG, fmt, ap);
   va_end(ap);
-  return ret;
+  return OK;
 }
 
 static int assert_tracecallback(FAR struct usbtrace_s *trace, FAR void *arg)
diff --git a/arch/hc/src/m9s12/m9s12_assert.c b/arch/hc/src/m9s12/m9s12_assert.c
index 88b5e8e884c..52bcb62a3f9 100644
--- a/arch/hc/src/m9s12/m9s12_assert.c
+++ b/arch/hc/src/m9s12/m9s12_assert.c
@@ -160,14 +160,13 @@ static inline void up_registerdump(void)
 static int usbtrace_syslog(FAR const char *fmt, ...)
 {
   va_list ap;
-  int ret;
 
-  /* Let nx_vsyslog do the real work */
+  /* Let vsyslog do the real work */
 
   va_start(ap, fmt);
-  ret = nx_vsyslog(LOG_EMERG, fmt, &ap);
+  vsyslog(LOG_EMERG, fmt, ap);
   va_end(ap);
-  return ret;
+  return OK;
 }
 
 static int assert_tracecallback(FAR struct usbtrace_s *trace, FAR void *arg)
diff --git a/arch/mips/src/mips32/mips_assert.c b/arch/mips/src/mips32/mips_assert.c
index e761558ce8a..5e3f2e72dad 100644
--- a/arch/mips/src/mips32/mips_assert.c
+++ b/arch/mips/src/mips32/mips_assert.c
@@ -120,14 +120,13 @@ static void _up_assert(int errorcode)
 static int usbtrace_syslog(FAR const char *fmt, ...)
 {
   va_list ap;
-  int ret;
 
-  /* Let nx_vsyslog do the real work */
+  /* Let vsyslog do the real work */
 
   va_start(ap, fmt);
-  ret = nx_vsyslog(LOG_EMERG, fmt, &ap);
+  vsyslog(LOG_EMERG, fmt, ap);
   va_end(ap);
-  return ret;
+  return OK;
 }
 
 static int assert_tracecallback(FAR struct usbtrace_s *trace, FAR void *arg)
diff --git a/arch/misoc/src/lm32/lm32_assert.c b/arch/misoc/src/lm32/lm32_assert.c
index ccc49b35c4c..85b970e50a1 100644
--- a/arch/misoc/src/lm32/lm32_assert.c
+++ b/arch/misoc/src/lm32/lm32_assert.c
@@ -125,14 +125,13 @@ static void _up_assert(int errorcode)
 static int usbtrace_syslog(FAR const char *fmt, ...)
 {
   va_list ap;
-  int ret;
 
-  /* Let nx_vsyslog do the real work */
+  /* Let vsyslog do the real work */
 
   va_start(ap, fmt);
-  ret = nx_vsyslog(LOG_EMERG, fmt, &ap);
+  vsyslog(LOG_EMERG, fmt, ap);
   va_end(ap);
-  return ret;
+  return OK;
 }
 
 static int assert_tracecallback(FAR struct usbtrace_s *trace, FAR void *arg)
diff --git a/arch/misoc/src/minerva/minerva_assert.c b/arch/misoc/src/minerva/minerva_assert.c
index a754f9f394c..fd806dd1ed0 100644
--- a/arch/misoc/src/minerva/minerva_assert.c
+++ b/arch/misoc/src/minerva/minerva_assert.c
@@ -125,14 +125,13 @@ static void _up_assert(int errorcode)
 static int usbtrace_syslog(FAR const char *fmt, ...)
 {
   va_list ap;
-  int ret;
 
-  /* Let nx_vsyslog do the real work */
+  /* Let vsyslog do the real work */
 
   va_start(ap, fmt);
-  ret = nx_vsyslog(LOG_EMERG, fmt, &ap);
+  vsyslog(LOG_EMERG, fmt, ap);
   va_end(ap);
-  return ret;
+  return OK;
 }
 
 static int assert_tracecallback(FAR struct usbtrace_s *trace, FAR void *arg)
diff --git a/arch/renesas/src/common/up_assert.c b/arch/renesas/src/common/up_assert.c
index 919c0ee7bf8..69a6ef18943 100644
--- a/arch/renesas/src/common/up_assert.c
+++ b/arch/renesas/src/common/up_assert.c
@@ -121,14 +121,13 @@ static void _up_assert(int errorcode)
 static int usbtrace_syslog(FAR const char *fmt, ...)
 {
   va_list ap;
-  int ret;
 
-  /* Let nx_vsyslog do the real work */
+  /* Let vsyslog do the real work */
 
   va_start(ap, fmt);
-  ret = nx_vsyslog(LOG_EMERG, fmt, &ap);
+  vsyslog(LOG_EMERG, fmt, ap);
   va_end(ap);
-  return ret;
+  return OK;
 }
 
 static int assert_tracecallback(FAR struct usbtrace_s *trace, FAR void *arg)
diff --git a/arch/risc-v/src/rv32im/riscv_assert.c b/arch/risc-v/src/rv32im/riscv_assert.c
index 97f5756b215..7711ad8a3ed 100644
--- a/arch/risc-v/src/rv32im/riscv_assert.c
+++ b/arch/risc-v/src/rv32im/riscv_assert.c
@@ -335,14 +335,13 @@ static void _up_assert(int errorcode)
 static int usbtrace_syslog(FAR const char *fmt, ...)
 {
   va_list ap;
-  int ret;
 
-  /* Let nx_vsyslog do the real work */
+  /* Let vsyslog do the real work */
 
   va_start(ap, fmt);
-  ret = nx_vsyslog(LOG_EMERG, fmt, &ap);
+  vsyslog(LOG_EMERG, fmt, ap);
   va_end(ap);
-  return ret;
+  return OK;
 }
 
 static int assert_tracecallback(FAR struct usbtrace_s *trace, FAR void *arg)
diff --git a/arch/risc-v/src/rv64gc/riscv_assert.c b/arch/risc-v/src/rv64gc/riscv_assert.c
index b0fe0711524..42d3cbd11fe 100644
--- a/arch/risc-v/src/rv64gc/riscv_assert.c
+++ b/arch/risc-v/src/rv64gc/riscv_assert.c
@@ -350,14 +350,13 @@ static void _up_assert(int errorcode)
 static int usbtrace_syslog(FAR const char *fmt, ...)
 {
   va_list ap;
-  int ret;
 
-  /* Let nx_vsyslog do the real work */
+  /* Let vsyslog do the real work */
 
   va_start(ap, fmt);
-  ret = nx_vsyslog(LOG_EMERG, fmt, &ap);
+  vsyslog(LOG_EMERG, fmt, ap);
   va_end(ap);
-  return ret;
+  return OK;
 }
 
 static int assert_tracecallback(FAR struct usbtrace_s *trace, FAR void *arg)
diff --git a/arch/x86/src/common/up_assert.c b/arch/x86/src/common/up_assert.c
index 70db9592231..8b5e0d9659e 100644
--- a/arch/x86/src/common/up_assert.c
+++ b/arch/x86/src/common/up_assert.c
@@ -111,14 +111,13 @@ static void up_stackdump(uint32_t sp, uint32_t stack_base)
 static int usbtrace_syslog(FAR const char *fmt, ...)
 {
   va_list ap;
-  int ret;
 
-  /* Let nx_vsyslog do the real work */
+  /* Let vsyslog do the real work */
 
   va_start(ap, fmt);
-  ret = nx_vsyslog(LOG_EMERG, fmt, &ap);
+  vsyslog(LOG_EMERG, fmt, ap);
   va_end(ap);
-  return ret;
+  return OK;
 }
 
 static int assert_tracecallback(FAR struct usbtrace_s *trace, FAR void *arg)
diff --git a/arch/x86_64/src/common/up_assert.c b/arch/x86_64/src/common/up_assert.c
index 186f9670ef9..ae9f15f9fd8 100644
--- a/arch/x86_64/src/common/up_assert.c
+++ b/arch/x86_64/src/common/up_assert.c
@@ -85,14 +85,13 @@ static void up_stackdump(uint64_t sp, uint64_t stack_base)
 static int usbtrace_syslog(FAR const char *fmt, ...)
 {
   va_list ap;
-  int ret;
 
-  /* Let nx_vsyslog do the real work */
+  /* Let vsyslog do the real work */
 
   va_start(ap, fmt);
-  ret = nx_vsyslog(LOG_EMERG, fmt, &ap);
+  vsyslog(LOG_EMERG, fmt, ap);
   va_end(ap);
-  return ret;
+  return OK;
 }
 
 static int assert_tracecallback(FAR struct usbtrace_s *trace, FAR void *arg)
diff --git a/arch/xtensa/src/common/xtensa_assert.c b/arch/xtensa/src/common/xtensa_assert.c
index dcf9382bcf5..94e2b289538 100644
--- a/arch/xtensa/src/common/xtensa_assert.c
+++ b/arch/xtensa/src/common/xtensa_assert.c
@@ -81,14 +81,13 @@
 static int usbtrace_syslog(FAR const char *fmt, ...)
 {
   va_list ap;
-  int ret;
 
-  /* Let nx_vsyslog do the real work */
+  /* Let vsyslog do the real work */
 
   va_start(ap, fmt);
-  ret = nx_vsyslog(LOG_EMERG, fmt, &ap);
+  vsyslog(LOG_EMERG, fmt, ap);
   va_end(ap);
-  return ret;
+  return OK;
 }
 
 static int assert_tracecallback(FAR struct usbtrace_s *trace, FAR void *arg)
diff --git a/arch/z16/src/common/z16_assert.c b/arch/z16/src/common/z16_assert.c
index 6c340751bd8..39d428b11e1 100644
--- a/arch/z16/src/common/z16_assert.c
+++ b/arch/z16/src/common/z16_assert.c
@@ -104,14 +104,13 @@ static void _up_assert(int errorcode) /* noreturn_function */
 static int usbtrace_syslog(FAR const char *fmt, ...)
 {
   va_list ap;
-  int ret;
 
-  /* Let nx_vsyslog do the real work */
+  /* Let vsyslog do the real work */
 
   va_start(ap, fmt);
-  ret = nx_vsyslog(LOG_EMERG, fmt, &ap);
+  vsyslog(LOG_EMERG, fmt, ap);
   va_end(ap);
-  return ret;
+  return OK;
 }
 
 static int assert_tracecallback(FAR struct usbtrace_s *trace, FAR void *arg)
diff --git a/arch/z80/src/common/z80_assert.c b/arch/z80/src/common/z80_assert.c
index dfd62481dd6..87ebbcb9af4 100644
--- a/arch/z80/src/common/z80_assert.c
+++ b/arch/z80/src/common/z80_assert.c
@@ -103,14 +103,13 @@ static void _up_assert(int errorcode) /* noreturn_function */
 static int usbtrace_syslog(FAR const char *fmt, ...)
 {
   va_list ap;
-  int ret;
 
-  /* Let nx_vsyslog do the real work */
+  /* Let vsyslog do the real work */
 
   va_start(ap, fmt);
-  ret = nx_vsyslog(LOG_EMERG, fmt, &ap);
+  vsyslog(LOG_EMERG, fmt, ap);
   va_end(ap);
-  return ret;
+  return OK;
 }
 
 static int assert_tracecallback(struct usbtrace_s *trace, void *arg)
diff --git a/drivers/usbdev/usbdev_trace.c b/drivers/usbdev/usbdev_trace.c
index 81ce7ff169e..9b45903134b 100644
--- a/drivers/usbdev/usbdev_trace.c
+++ b/drivers/usbdev/usbdev_trace.c
@@ -100,14 +100,13 @@ static usbtrace_idset_t g_maskedidset = CONFIG_USBDEV_TRACE_INITIALIDSET;
 static int usbtrace_syslog(const char *fmt, ...)
 {
   va_list ap;
-  int ret;
 
-  /* Let nx_vsyslog do the real work */
+  /* Let vsyslog do the real work */
 
   va_start(ap, fmt);
-  ret = nx_vsyslog(LOG_INFO, fmt, &ap);
+  vsyslog(LOG_INFO, fmt, ap);
   va_end(ap);
-  return ret;
+  return OK;
 }
 #endif
 
diff --git a/drivers/usbmonitor/usbmonitor.c b/drivers/usbmonitor/usbmonitor.c
index 5fc6a2c5206..83a1108a82e 100644
--- a/drivers/usbmonitor/usbmonitor.c
+++ b/drivers/usbmonitor/usbmonitor.c
@@ -143,14 +143,13 @@ static struct usbmon_state_s g_usbmonitor;
 static int usbtrace_syslog(FAR const char *fmt, ...)
 {
   va_list ap;
-  int ret;
 
-  /* Let nx_vsyslog do the real work */
+  /* Let vsyslog do the real work */
 
   va_start(ap, fmt);
-  ret = nx_vsyslog(LOG_INFO, fmt, &ap);
+  vsyslog(LOG_INFO, fmt, ap);
   va_end(ap);
-  return ret;
+  return OK;
 }
 
 static int usbmonitor_tracecallback(struct usbtrace_s *trace, void *arg)