diff --git a/YD_AllHeartRates.Api/Services/Impl/DeviceService.cs b/YD_AllHeartRates.Api/Services/Impl/DeviceService.cs
index 88ef837..220ef81 100644
--- a/YD_AllHeartRates.Api/Services/Impl/DeviceService.cs
+++ b/YD_AllHeartRates.Api/Services/Impl/DeviceService.cs
@@ -174,12 +174,8 @@ namespace YD_AllHeartRates.Api.Services.Impl
             await _sportsContext.AddAsync(entity);
             var res = await _sportsContext.SaveChangesAsync() > 0;
 
-            if (res)
-            {
-                _caching.Remove(AppSettings.DeviceListCacheKey);
-                return true;
-            }
-            return false;
+            _caching.Remove(AppSettings.DeviceListCacheKey);
+            return res;
         }
 
         /// <summary>
@@ -210,12 +206,8 @@ namespace YD_AllHeartRates.Api.Services.Impl
             _sportsContext.Update(device);
             var res = await _sportsContext.SaveChangesAsync() > 0;
 
-            if (res)
-            {
-                _caching.Remove(AppSettings.DeviceListCacheKey);
-                return true;
-            }
-            return false;
+            _caching.Remove(AppSettings.DeviceListCacheKey);
+            return res;
         }
 
         /// <summary>
@@ -233,12 +225,8 @@ namespace YD_AllHeartRates.Api.Services.Impl
             _sportsContext.Device.Remove(device);
             var res = await _sportsContext.SaveChangesAsync() > 0;
 
-            if (res)
-            {
-                _caching.Remove(AppSettings.DeviceListCacheKey);
-                return true;
-            }
-            return false;
+            _caching.Remove(AppSettings.DeviceListCacheKey);
+            return res;
         }
 
         /// <summary>