James Hogan 563ddc1076 metag/usercopy: Zero rest of buffer from copy_from_user ... Currently we try to zero the destination for a failed read from userland in fixup code in the usercopy.c macros. The rest of the destination buffer is then zeroed from __copy_user_zeroing(), which is used for both copy_from_user() and __copy_from_user(). Unfortunately we fail to zero in the fixup code as D1Ar1 is set to 0 before the fixup code entry labels, and __copy_from_user() shouldn't even be zeroing the rest of the buffer. Move the zeroing out into copy_from_user() and rename __copy_user_zeroing() to raw_copy_from_user() since it no longer does any zeroing. This also conveniently matches the name needed for RAW_COPY_USER support in a later patch. Fixes: 373cd784d0 ("metag: Memory handling") Reported-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: linux-metag@vger.kernel.org Cc: stable@vger.kernel.org		2017-04-05 15:25:02 +01:00
..
boot	metag: enable building of all dtbs	2015-10-27 16:12:16 -05:00
configs	metag: minimal TZ1090 (Comet) SoC infrastructure	2013-06-13 12:14:07 +01:00
include	metag/usercopy: Zero rest of buffer from copy_from_user	2017-04-05 15:25:02 +01:00
kernel	sched/headers: Move task->mm handling methods to <linux/sched/mm.h>	2017-03-03 01:43:28 +01:00
lib	metag/usercopy: Zero rest of buffer from copy_from_user	2017-04-05 15:25:02 +01:00
mm	sched/headers: Prepare to move 'init_task' and 'init_thread_union' from <linux/sched.h> to <linux/sched/task.h>	2017-03-02 08:42:38 +01:00
oprofile	metag: OProfile support	2013-03-15 13:21:05 +00:00
tbx	metag: Fix misspellings in comments.	2016-04-18 12:45:54 +02:00
Kconfig	lib/GCD.c: use binary GCD algorithm instead of Euclidean	2016-05-20 17:58:30 -07:00
Kconfig.debug	consolidate per-arch stack overflow debugging options	2013-07-04 11:25:39 -07:00
Kconfig.soc	metag: remove ARCH_WANT_OPTIONAL_GPIOLIB	2016-04-26 13:39:22 +02:00
Makefile	metag: use common make variables for dtb builds	2015-10-27 16:12:15 -05:00