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    SubjectRe: [PATCH] driver core: Add the ability to unbind drivers to devices from userspace
    New, simplified version of the sysfs whitespace strip patch...

    --
    Jon Smirl
    jonsmirl@gmail.com

    Remove leading and trailing whitespace when text sysfs attribute is set
    signed-off-by: Jon Smirl <jonsmirl@gmail.com>

    diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
    --- a/fs/sysfs/file.c
    +++ b/fs/sysfs/file.c
    @@ -6,6 +6,7 @@
    #include <linux/fsnotify.h>
    #include <linux/kobject.h>
    #include <linux/namei.h>
    +#include <linux/ctype.h>
    #include <asm/uaccess.h>
    #include <asm/semaphore.h>

    @@ -207,8 +208,22 @@ flush_write_buffer(struct dentry * dentr
    struct attribute * attr = to_attr(dentry);
    struct kobject * kobj = to_kobj(dentry->d_parent);
    struct sysfs_ops * ops = buffer->ops;
    + char *x;

    - return ops->store(kobj,attr,buffer->page,count);
    + /* locate trailing white space */
    + while ((count > 0) && isspace(buffer->page[count - 1]))
    + count--;
    +
    + /* locate leading white space */
    + x = buffer->page;
    + while (isspace(*x) && (x - buffer->page < count))
    + x++;
    + count -= (x - buffer->page);
    +
    + /* terminate the string */
    + x[count] = '\0';
    +
    + return ops->store(kobj, attr, x, count);
    }
    -
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