On Thu, 20 Mar 2008 09:32:38 -0400, "Mark M. Hoffman" <mhoffman at lightlink.com> wrote: >Hi all: > > adm1026.c | 22 ++++++++++++++-------- > adm1029.c | 30 +++++++++++++++++++----------- > adm1031.c | 20 +++++++++++++++----- > adm9240.c | 20 ++++++++++++++------ > adt7470.c | 40 ++++++++++++++++++++++++---------------- > adt7473.c | 54 +++++++++++++++++++++++++++++++----------------------- > asb100.c | 16 ++++++++++++---- > 7 files changed, 129 insertions(+), 73 deletions(-) > >commit 3c798b55145f42725c54d64ac7d69062a5d62bad >Author: Mark M. Hoffman <mhoffman at lightlink.com> >Date: Mon Mar 3 23:35:52 2008 -0500 > > hwmon: fix common race conditions, batch 1 > > Most hwmon drivers have one or more race conditions that could cause the driver > to display incorrect data; in the absolute worst case, these races could allow > divide-by-zero/OOPS. The most common of these involves a race between setting > a fan divider and displaying the fan data (RPMs). This patch fixes these race > conditions by taking the update lock (or equivalent) as necessary. > > Signed-off-by: Mark M. Hoffman <mhoffman at lightlink.com> adm9240 tested on 2.6.25-rc6 and lm-sensors 3.0.0, no problems noticed, no observed breakage ;) I doubt there's a possible div0/oops involved. Grant.
