From: Julia Lawall
If the kfree is executed, the dereference of range afterwards will
represent a use after free. Added goto out, as done in the other nearby
error handling code.
A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)
//
Hi, I'm using KVM, and the virtual disk (a 20 GB file using the "raw"
qemu format according to virt-manager and, of course, placed on a btrfs
filesystem, running the latest mainline git) is awfully slow, no matter
what OS is running inside the VM. The PCBSD installer says it's copying
data at a 40-