diff --git a/firmware/target/arm/imx233/clkctrl-imx233.c b/firmware/target/arm/imx233/clkctrl-imx233.c
index fa94f23a0f..dbdc12e38e 100644
--- a/firmware/target/arm/imx233/clkctrl-imx233.c
+++ b/firmware/target/arm/imx233/clkctrl-imx233.c
@@ -266,7 +266,7 @@ unsigned imx233_get_clock_freq(enum imx233_clock_t clk)
     {
         case CLK_PLL: /* PLL: 480MHz when enable */
             return imx233_is_clock_enable(CLK_PLL) ? 480000 : 0;
-        case CLK_XTAL: /* crytsal: 24MHz */
+        case CLK_XTAL: /* crystal: 24MHz */
             return 24000;
         case CLK_CPU:
         {
diff --git a/firmware/target/arm/imx233/mmc-imx233.c b/firmware/target/arm/imx233/mmc-imx233.c
index 8bdefebf6b..8782e8e8af 100644
--- a/firmware/target/arm/imx233/mmc-imx233.c
+++ b/firmware/target/arm/imx233/mmc-imx233.c
@@ -206,7 +206,7 @@ static int transfer_sectors(IF_MD2(int drive,) unsigned long start, int count, v
     start += mmc_window_start;
     if((start + count) > mmc_window_end)
         return -201;
-    /* get mutex (needed because we done multiple commands for count > 0 */
+    /* get mutex (needed because we do multiple commands for count > 0) */
     mutex_lock(&mmc_mutex);
     int ret = 0;
     uint32_t resp;
diff --git a/firmware/target/arm/imx233/sd-imx233.c b/firmware/target/arm/imx233/sd-imx233.c
index c17681828f..745a75b2dc 100644
--- a/firmware/target/arm/imx233/sd-imx233.c
+++ b/firmware/target/arm/imx233/sd-imx233.c
@@ -372,9 +372,6 @@ static int transfer_sectors(IF_MD2(int drive,) unsigned long start, int count, v
         ret = -23;
     Lend:
     mutex_unlock(&sd_mutex);
-    if(ret != 0)
-        panicf("transfer_sectors(%d,%d,%d,%d,%d,%d)", drive, start, count, read,
-            old_start, old_count);
     return ret;
 }