AP_HAL_Linux: fix warning due to derived PWM_Sysfs

PWM_Sysfs derives from PWM_Sysfs_Base which was not update to have a virtual destructor. Make PWM_Sysfs_Base's constructor virtual.
9 years ago · 49abb78372
1 changed files with 1 additions and 1 deletions
--- a/libraries/AP_HAL_Linux/PWM_Sysfs.h
+++ b/libraries/AP_HAL_Linux/PWM_Sysfs.h
@ -7,7 +7,7 @@
				@@ -7,7 +7,7 @@

 class Linux::PWM_Sysfs_Base {
 public:
-    ~PWM_Sysfs_Base();
+    virtual ~PWM_Sysfs_Base();

    enum Polarity {
        NORMAL = 0,