diff --git a/firmware/drivers/ata.c b/firmware/drivers/ata.c
index 1dd05133fe..4f4fb4c9b3 100644
--- a/firmware/drivers/ata.c
+++ b/firmware/drivers/ata.c
@@ -956,6 +956,8 @@ int ata_hard_reset(void)
 {
     int ret;
 
+    mutex_lock(&ata_mtx);
+
     ata_reset();
 
     /* state HRR2 */
@@ -965,6 +967,8 @@ int ata_hard_reset(void)
     /* Massage the return code so it is 0 on success and -1 on failure */
     ret = ret?0:-1;
 
+    mutex_unlock(&ata_mtx);
+
     return ret;
 }