Bug#812593: linux-base: saa7134_alsa won't unload, reported in use by kernel

[John Smith <jhn1987smth3323@gmail.com>]

Package: linux-base
Version: 3.5
Severity: normal
Tags: newcomer

Dear Maintainer,

Here is the summary:

   * What led up to the situation?
         I don't know when this problem first appeared as I was upgrading
regularly and did not need to remove the module. Recently I was forced to do a
fresh install and I needed to find out the card and tuner for the saa7134
module because the i2c system would not detect the correct card. To try
different settings I needed to unload and reload the saa7134 module multiple
times. But failed at the first attempt due to saa7134_alsa module being
reported as in use. Although lsmod says:
Module                  Size  Used by
saa7134_alsa           17686  0

   * What exactly did you do (or not do) that was effective (or
     ineffective)?
        rmmod -f saa7134_alsa
        modprobe -vfr saa7134_alsa

   * What was the outcome of this action?
        modprobe reported this error:
            modprobe: FATAL: Module saa7134_alsa is in use.
            modprobe: ERROR: ../libkmod/libkmod-module.c:777
kmod_module_remove_module() could not remove 'saa7134_alsa': Device or resource
busy

   * What outcome did you expect instead?
        removal of the module even without the "force" option, as was the case
in prior kernels.



-- System Information:
Debian Release: 8.2
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.16.0-4-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages linux-base depends on:
ii  debconf [debconf-2.0]  1.5.56
ii  libuuid-perl           0.05-1+b1
ii  udev                   215-17+deb8u2
ii  util-linux             2.25.2-6

linux-base recommends no packages.

linux-base suggests no packages.

-- debconf information:
  linux-base/disk-id-convert-plan-no-relabel: true
  linux-base/disk-id-manual-boot-loader:
  linux-base/disk-id-update-failed:
  linux-base/do-bootloader-default-changed:
  linux-base/disk-id-convert-auto: true