lkml.org 
[lkml]   [2010]   [Nov]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    Date
    From
    Subject[PATCH] regulator: lock supply in regulator enable
    This patch add locks around regulator supply enable.

    Signed-off-by: Mattias Wallin <mattias.wallin@stericsson.com>
    ---
    The previous patch I sent solves a problem seen in our system.
    This patch does not solve a problem I have seen but I still think
    it should be there. Or at least some locking of the supply in regulator enable.
    What do you guys think?
    ---
    drivers/regulator/core.c | 2 ++
    1 files changed, 2 insertions(+), 0 deletions(-)

    diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
    index c625633..d10ad4a 100644
    --- a/drivers/regulator/core.c
    +++ b/drivers/regulator/core.c
    @@ -1270,7 +1270,9 @@ static int _regulator_enable(struct regulator_dev *rdev)

    /* do we need to enable the supply regulator first */
    if (rdev->supply) {
    + mutex_lock(&rdev->supply->mutex);
    ret = _regulator_enable(rdev->supply);
    + mutex_unlock(&rdev->supply->mutex);
    if (ret < 0) {
    printk(KERN_ERR "%s: failed to enable %s: %d\n",
    __func__, rdev_get_name(rdev), ret);
    --
    1.6.3.3


    \
     
     \ /
      Last update: 2010-11-04 11:05    [W:0.018 / U:31.736 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site