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authorRalf Baechle <ralf@linux-mips.org>2005-04-13 18:18:04 +0000
committerRalf Baechle <ralf@linux-mips.org>2005-10-29 19:31:06 +0100
commit1fcf1cc742d01f786cda619fd49450b77b09e8c5 (patch)
tree0ae42177bac0a65a0b71c9c66d2591ef32215f21 /arch
parent3c37026d43c47bec4710cbda286f4a17f416f5e6 (diff)
We pass a kernel pointer to do_sigaltstack in sys32_sigaltstack, so
we need to do the set_fs(KERNEL_DS) thing around this call. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/mips/kernel/signal32.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/mips/kernel/signal32.c b/arch/mips/kernel/signal32.c
index e8c380dceb8..5e7d0fa0267 100644
--- a/arch/mips/kernel/signal32.c
+++ b/arch/mips/kernel/signal32.c
@@ -488,6 +488,7 @@ __attribute_used__ noinline static void
_sys32_rt_sigreturn(nabi_no_regargs struct pt_regs regs)
{
struct rt_sigframe32 *frame;
+ mm_segment_t old_fs;
sigset_t set;
stack_t st;
s32 sp;
@@ -518,7 +519,10 @@ _sys32_rt_sigreturn(nabi_no_regargs struct pt_regs regs)
/* It is more difficult to avoid calling this function than to
call it and ignore errors. */
+ old_fs = get_fs();
+ set_fs (KERNEL_DS);
do_sigaltstack(&st, NULL, regs.regs[29]);
+ set_fs (old_fs);
/*
* Don't let your children do this ...