VOLD - make volume daemon to handle state change from shared to no_media

When volume state changed from shared to no_media,
    volume is not properly unshared.

Change-Id: I0117d67da95440d982275746a166ef6f4ac1c0e2
Signed-off-by: Ethan <ethan.too@gmail.com>

DirectVolume.cpp

@@ -266,6 +266,7 @@ void DirectVolume::handlePartitionRemoved(const char *devpath, NetlinkEvent *evt
     int major = atoi(evt->findParam("MAJOR"));
     int minor = atoi(evt->findParam("MINOR"));
     char msg[255];
+    int state;
 
     SLOGD("Volume %s %s partition %d:%d removed\n", getLabel(), getMountpoint(), major, minor);
 
@@ -275,7 +276,8 @@ void DirectVolume::handlePartitionRemoved(const char *devpath, NetlinkEvent *evt
      * the removal notification will be sent on the Disk
      * itself
      */
-    if (getState() != Volume::State_Mounted) {
+    state = getState();
+    if (state != Volume::State_Mounted && state != Volume::State_Shared) {
         return;
     }
         
@@ -300,6 +302,19 @@ void DirectVolume::handlePartitionRemoved(const char *devpath, NetlinkEvent *evt
         } else {
             SLOGD("Crisis averted");
         }
+    } else if (state == Volume::State_Shared) {
+        /* removed during mass storage */
+        snprintf(msg, sizeof(msg), "Volume %s bad removal (%d:%d)",
+                 getLabel(), major, minor);
+        mVm->getBroadcaster()->sendBroadcast(ResponseCode::VolumeBadRemoval,
+                                             msg, false);
+
+        if (mVm->unshareVolume(getLabel(), "ums")) {
+            SLOGE("Failed to unshare volume on bad removal (%s)",
+                strerror(errno));
+        } else {
+            SLOGD("Crisis averted");
+        }
     }
 }