Fixed bug 3606274.

git-svn-id: https://chibios.svn.sourceforge.net/svnroot/chibios/trunk@5388 35acf78f-673a-0410-8e92-d51de3d6d3f4
Fixed bug 3606616.

git-svn-id: https://chibios.svn.sourceforge.net/svnroot/chibios/trunk@5389 35acf78f-673a-0410-8e92-d51de3d6d3f4