lkml.org 
[lkml]   [2007]   [Nov]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [PATCH] kobject: make sure kobj->ktype is set before kobject_init
    On Thu, 29 Nov 2007, Kay Sievers wrote:

    > Your error scenario confirmed my initial concern about suggesting
    > kobject_put() to clean up an initialized kobject.
    >
    > We should probably make kobject_cleanup() free only the resources taken
    > by kobject_init(), and use kobject_cleanup() instead of kobject_put()?

    My conclusion is different. We should make kobject_init() not consume
    any resources at all; just initialize various fields. That way it
    would be okay to call either kfree() or kobject_put() on an initialized
    kobject. And then when something like device_register() fails, the
    caller would know the proper thing to do would be to call the put()
    routine, always.

    Of course, once the name has been assigned, only kobject_put() should
    be used.

    There's another good reason for not assigning the name in
    kobject_init(): Code that uses kobjects (like the driver core) doesn't
    set the name until later.

    Alan Stern

    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2007-11-29 20:09    [W:4.037 / U:0.016 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site