Hi,
On Thu, Feb 27, 2014 at 02:49:31PM +0800, Chuansheng Liu wrote:
When the request length is aligned to maxpacketsize, sometimes
the return length ret the user space requested len.
At that time, we will use min_t(size_t, ret, len) to limit the
size in case of user data buffer overflow.
Can; Wang, Yu Y
Subject: Re: [PATCH] usb: gadget: return the right length in ffs_epfile_io()
Hi,
On Thu, Feb 27, 2014 at 02:49:31PM +0800, Chuansheng Liu wrote:
When the request length is aligned to maxpacketsize, sometimes
the return length ret the user space requested len
On Thu, Feb 27 2014, Chuansheng Liu chuansheng@intel.com wrote:
When the request length is aligned to maxpacketsize, sometimes
the return length ret the user space requested len.
At that time, we will use min_t(size_t, ret, len) to limit the
size in case of user data buffer overflow.
On Thu, Feb 27, 2014 at 01:15:25PM +0100, Michal Nazarewicz wrote:
On Thu, Feb 27 2014, Chuansheng Liu chuansheng@intel.com wrote:
When the request length is aligned to maxpacketsize, sometimes
the return length ret the user space requested len.
At that time, we will use
When the request length is aligned to maxpacketsize, sometimes
the return length ret the user space requested len.
At that time, we will use min_t(size_t, ret, len) to limit the
size in case of user data buffer overflow.
But we need return the min_t(size_t, ret, len) to tell the user
space
