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authorLinus Torvalds <torvalds@linux-foundation.org>2010-10-18 13:10:36 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-10-18 13:10:36 -0700
commit547af560ddbfe469ada2cad3009cbcfde313d73c (patch)
tree1f97e215de2d88d90ed34db24212dab69eb300b2 /arch/mips/kernel/signal_n32.c
parentb0579fc089808b68c53a6a95d043db034468116c (diff)
parenta35bee8a2748abe9a40865f477aba0a9b85965fd (diff)
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus: MIPS: Enable ISA_DMA_API config to fix build failure MIPS: 32-bit: Fix build failure in asm/fcntl.h MIPS: Remove all generated vmlinuz* files on "make clean" MIPS: do_sigaltstack() expects userland pointers MIPS: Fix error values in case of bad_stack MIPS: Sanitize restart logics MIPS: secure_computing, syscall audit: syscall number should in r2, not r0. MIPS: Don't block signals if we'd failed to setup a sigframe
Diffstat (limited to 'arch/mips/kernel/signal_n32.c')
-rw-r--r--arch/mips/kernel/signal_n32.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/mips/kernel/signal_n32.c b/arch/mips/kernel/signal_n32.c
index 2c5df818c65..ee24d814d5b 100644
--- a/arch/mips/kernel/signal_n32.c
+++ b/arch/mips/kernel/signal_n32.c
@@ -109,6 +109,7 @@ asmlinkage int sysn32_rt_sigsuspend(nabi_no_regargs struct pt_regs regs)
asmlinkage void sysn32_rt_sigreturn(nabi_no_regargs struct pt_regs regs)
{
struct rt_sigframe_n32 __user *frame;
+ mm_segment_t old_fs;
sigset_t set;
stack_t st;
s32 sp;
@@ -143,7 +144,11 @@ asmlinkage void sysn32_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((stack_t __user *)&st, NULL, regs.regs[29]);
+ set_fs(old_fs);
+
/*
* Don't let your children do this ...