Comment 5 for bug 1197586

I found the same bug while trying to install the latest kernel 3.11.0-031100-generic on Ubuntu 13.04 (x86_64) Mac mini late 2012 with a BCM4331 wireless chipset. The issue seems to be number of changes appeared in proc_fs.h in kernel-3.10.0 which moved from create_proc_entry() to proc_create(). The patch checks the current version of the kernel and uses the appropriate function calls required.