diff --git a/wgpu-hal/src/dx12/adapter.rs b/wgpu-hal/src/dx12/adapter.rs
index 5bf92069a86..236fec49c3d 100644
--- a/wgpu-hal/src/dx12/adapter.rs
+++ b/wgpu-hal/src/dx12/adapter.rs
@@ -462,11 +462,13 @@ impl crate::Adapter<super::Api> for super::Adapter {
         let mut set_sample_count = |sc: u32, tfc: Tfc| {
             ms_levels.SampleCount = sc;
 
-            if self.device.CheckFeatureSupport(
-                d3d12::D3D12_FEATURE_MULTISAMPLE_QUALITY_LEVELS,
-                <*mut _>::cast(&mut ms_levels),
-                mem::size_of::<d3d12::D3D12_FEATURE_DATA_MULTISAMPLE_QUALITY_LEVELS>() as _,
-            ) == winerror::S_OK
+            if unsafe {
+                self.device.CheckFeatureSupport(
+                    d3d12::D3D12_FEATURE_MULTISAMPLE_QUALITY_LEVELS,
+                    <*mut _>::cast(&mut ms_levels),
+                    mem::size_of::<d3d12::D3D12_FEATURE_DATA_MULTISAMPLE_QUALITY_LEVELS>() as _,
+                )
+            } == winerror::S_OK
                 && ms_levels.NumQualityLevels != 0
             {
                 caps.set(tfc, !no_msaa_load && !no_msaa_target);
diff --git a/wgpu-hal/src/gles/adapter.rs b/wgpu-hal/src/gles/adapter.rs
index 83355649da0..d27beecf668 100644
--- a/wgpu-hal/src/gles/adapter.rs
+++ b/wgpu-hal/src/gles/adapter.rs
@@ -196,7 +196,7 @@ impl super::Adapter {
 
             (vendor, renderer)
         };
-        
+
         let version = unsafe { gl.get_parameter_string(glow::VERSION) };
 
         log::info!("Vendor: {}", vendor);
@@ -666,11 +666,12 @@ impl crate::Adapter<super::Api> for super::Adapter {
         use wgt::TextureFormat as Tf;
 
         let sample_count = {
-            let max_samples = self
-                .shared
-                .context
-                .lock()
-                .get_parameter_i32(glow::MAX_SAMPLES);
+            let max_samples = unsafe {
+                self.shared
+                    .context
+                    .lock()
+                    .get_parameter_i32(glow::MAX_SAMPLES)
+            };
             if max_samples >= 8 {
                 Tfc::MULTISAMPLE_X2 | Tfc::MULTISAMPLE_X4 | Tfc::MULTISAMPLE_X8
             } else if max_samples >= 4 {