Commits
Mikulas Patocka committed 3198d36127d
dm stats: fix divide by zero if 'number_of_areas' arg is zero commit dd4c1b7d0c95be1c9245118a3accc41a16f1db67 upstream. If the number_of_areas argument was zero the kernel would crash on div-by-zero. Add better input validation. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>