diff --git a/arch/arm/src/imxrt/imxrt_lpi2c.c b/arch/arm/src/imxrt/imxrt_lpi2c.c
index f4a726a7204..1bcff9eaece 100644
--- a/arch/arm/src/imxrt/imxrt_lpi2c.c
+++ b/arch/arm/src/imxrt/imxrt_lpi2c.c
@@ -955,7 +955,7 @@ static void imxrt_lpi2c_tracedump(FAR struct imxrt_lpi2c_priv_s *priv)
   syslog(LOG_DEBUG, "Elapsed time: %ld\n",
          (long)(clock_systimer() - priv->start_time));
 
-  for (i = 0; i <= priv->tndx; i++)
+  for (i = 0; i < priv->tndx; i++)
     {
       trace = &priv->trace[i];
       syslog(LOG_DEBUG,
diff --git a/arch/arm/src/stm32/stm32_i2c.c b/arch/arm/src/stm32/stm32_i2c.c
index 3ff1fe59768..d6c8f6661b1 100644
--- a/arch/arm/src/stm32/stm32_i2c.c
+++ b/arch/arm/src/stm32/stm32_i2c.c
@@ -914,7 +914,7 @@ static void stm32_i2c_tracedump(FAR struct stm32_i2c_priv_s *priv)
   syslog(LOG_DEBUG, "Elapsed time: %ld\n",
          (long)(clock_systimer() - priv->start_time));
 
-  for (i = 0; i <= priv->tndx; i++)
+  for (i = 0; i < priv->tndx; i++)
     {
       trace = &priv->trace[i];
       syslog(LOG_DEBUG,
diff --git a/arch/arm/src/stm32f0/stm32f0_i2c.c b/arch/arm/src/stm32f0/stm32f0_i2c.c
index f16e6fe2b58..a8d0500aaea 100644
--- a/arch/arm/src/stm32f0/stm32f0_i2c.c
+++ b/arch/arm/src/stm32f0/stm32f0_i2c.c
@@ -972,7 +972,7 @@ static void stm32f0_i2c_tracedump(FAR struct stm32f0_i2c_priv_s *priv)
   syslog(LOG_DEBUG, "Elapsed time: %ld\n",
          (long)(clock_systimer() - priv->start_time));
 
-  for (i = 0; i <= priv->tndx; i++)
+  for (i = 0; i < priv->tndx; i++)
     {
       trace = &priv->trace[i];
       syslog(LOG_DEBUG,
diff --git a/arch/arm/src/stm32f7/stm32_i2c.c b/arch/arm/src/stm32f7/stm32_i2c.c
index da86f7318ff..c72e7615683 100644
--- a/arch/arm/src/stm32f7/stm32_i2c.c
+++ b/arch/arm/src/stm32f7/stm32_i2c.c
@@ -1246,7 +1246,7 @@ static void stm32_i2c_tracedump(FAR struct stm32_i2c_priv_s *priv)
   syslog(LOG_DEBUG, "Elapsed time: %d\n",
          clock_systimer() - priv->start_time);
 
-  for (i = 0; i <= priv->tndx; i++)
+  for (i = 0; i < priv->tndx; i++)
     {
       trace = &priv->trace[i];
       syslog(LOG_DEBUG,
diff --git a/arch/arm/src/stm32h7/stm32_i2c.c b/arch/arm/src/stm32h7/stm32_i2c.c
index 042e45ceee6..ff05d56431f 100644
--- a/arch/arm/src/stm32h7/stm32_i2c.c
+++ b/arch/arm/src/stm32h7/stm32_i2c.c
@@ -1205,7 +1205,7 @@ static void stm32_i2c_tracedump(FAR struct stm32_i2c_priv_s *priv)
   syslog(LOG_DEBUG, "Elapsed time: %d\n",
          clock_systimer() - priv->start_time);
 
-  for (i = 0; i <= priv->tndx; i++)
+  for (i = 0; i < priv->tndx; i++)
     {
       trace = &priv->trace[i];
       syslog(LOG_DEBUG,
diff --git a/arch/arm/src/stm32l4/stm32l4_i2c.c b/arch/arm/src/stm32l4/stm32l4_i2c.c
index 7df5e2c892c..9cd46d8b445 100644
--- a/arch/arm/src/stm32l4/stm32l4_i2c.c
+++ b/arch/arm/src/stm32l4/stm32l4_i2c.c
@@ -1247,7 +1247,7 @@ static void stm32l4_i2c_tracedump(FAR struct stm32l4_i2c_priv_s *priv)
   syslog(LOG_DEBUG, "Elapsed time: %d\n",
          clock_systimer() - priv->start_time);
 
-  for (i = 0; i <= priv->tndx; i++)
+  for (i = 0; i < priv->tndx; i++)
     {
       trace = &priv->trace[i];
       syslog(LOG_DEBUG,
diff --git a/arch/arm/src/tiva/common/tiva_i2c.c b/arch/arm/src/tiva/common/tiva_i2c.c
index 04004bee435..d7f2170e6b0 100644
--- a/arch/arm/src/tiva/common/tiva_i2c.c
+++ b/arch/arm/src/tiva/common/tiva_i2c.c
@@ -1014,7 +1014,7 @@ static void tiva_i2c_tracedump(struct tiva_i2c_priv_s *priv)
   syslog(LOG_DEBUG, "Elapsed time: %ld\n",
          (long)(clock_systimer() - priv->ttime));
 
-  for (i = 0; i <= priv->tndx; i++)
+  for (i = 0; i < priv->tndx; i++)
     {
       trace = &priv->trace[i];
       syslog(LOG_DEBUG,