Revision 887349f69f37e71e2a8bfbd743831625a0b2ff51 authored by Michael S. Tsirkin on 28 February 2016, 15:35:59 UTC, committed by Ralf Baechle on 29 February 2016, 14:52:20 UTC
Calling return copy_to_user(...) or return copy_from_user in an ioctl will not do the right thing if there's a pagefault: copy_to_user/copy_from_user return the number of bytes not copied in this case. Fix up kvm on mips to do return copy_to_user(...)) ? -EFAULT : 0; and return copy_from_user(...)) ? -EFAULT : 0; everywhere. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: James Hogan <james.hogan@imgtec.com> Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: stable@vger.kernel.org Cc: kvm@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/12709/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
1 parent 56fa81f
makelst
#!/bin/sh
# A script to dump mixed source code & assembly
# with correct relocations from System.map
# Requires the following lines in makefile:
#%.lst: %.c
# $(CC) $(c_flags) -g -c -o $*.o $< &&
# $(srctree)/scripts/makelst $*.o System.map $(OBJDUMP) > $@
#
# Copyright (C) 2000 IBM Corporation
# Author(s): DJ Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com)
# William Stearns <wstearns@pobox.com>
#
# awk style field access
field() {
shift $1 ; echo $1
}
t1=`$3 --syms $1 | grep .text | grep -m1 " F "`
if [ -n "$t1" ]; then
t2=`field 6 $t1`
if [ ! -r $2 ]; then
echo "No System.map" >&2
else
t3=`grep $t2 $2`
t4=`field 1 $t3`
t5=`field 1 $t1`
t6=`printf "%lu" $((0x$t4 - 0x$t5))`
fi
fi
$3 -r --source --adjust-vma=${t6:-0} $1
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