drm/amdgpu: Remove unneeded semicolon in amdgpu_ras.c

Fixes coccicheck warning:

drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c:318:2-3: Unneeded semicolon

Reported-by: Hulk Robot <[email protected]>
Signed-off-by: zhengbin <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
index d5346dc..ad593d1 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
@@ -315,7 +315,7 @@ static ssize_t amdgpu_ras_debugfs_ctrl_write(struct file *f, const char __user *
 	default:
 		ret = -EINVAL;
 		break;
-	};
+	}
 
 	if (ret)
 		return -EINVAL;