Messages in this thread | | | Date | Tue, 15 Jun 2010 12:31:01 -0700 | From | Andrew Morton <> | Subject | Re: [PATCH] uniform cdrom: fix mutex unlocking in /proc/sys/dev/cdrom/info file |
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On Tue, 15 Jun 2010 14:40:54 -0400 Davidlohr Bueso <dave.bueso@gmail.com> wrote:
> Regarding cdrom_sysctl_info(), I have noticed in several netbooks > (haven't > looked in other machines with no cdrom drive) that the > /proc/sys/dev/cdrom/info file shows no values for the listed entries, > ie: > > CD-ROM information, Id: cdrom.c 3.20 2003/12/17 > > drive name: > drive speed: > drive # of slots: > Can close tray: > Can open tray: > ... > > Now, is this expected behavior? If not, should it be changed to > something > more descriptive? Perhaps it would affect user space applications that > read > the file?
It works for me.
Does your kernel build have CONFIG_SYSCTL=n? If so, then all that code is disabled. That seems a bit bogus to me and perhaps we should enable at least some of that code by CONFIG_PROCFS instead.
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