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authorPaul Mackerras <paulus@samba.org>2005-10-22 14:46:33 +1000
committerPaul Mackerras <paulus@samba.org>2005-10-22 14:46:33 +1000
commite2b5530698cbe8148577b24097eaefcd835ac9ca (patch)
tree270f7505fa2b94880b5f59b638a8b5567c28f547 /arch/powerpc/kernel
parent5c8c56ebdfb290e4feaac406518903f58714d874 (diff)
ppc64: Fix delivery of RT signals to 32-bit processes.
An error in merging led to 32-bit processes getting the wrong link register value on entry to RT signal handlers, and the wrong stack chain as well. This fixes it. Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/kernel')
-rw-r--r--arch/powerpc/kernel/signal_32.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c
index 1c4eac4c808..92452b2db26 100644
--- a/arch/powerpc/kernel/signal_32.c
+++ b/arch/powerpc/kernel/signal_32.c
@@ -821,7 +821,7 @@ static int handle_rt_signal(unsigned long sig, struct k_sigaction *ka,
goto badframe;
regs->link = (unsigned long) frame->tramp;
}
- if (put_user(regs->gpr[1], (unsigned long __user *)newsp))
+ if (put_user(regs->gpr[1], (u32 __user *)newsp))
goto badframe;
regs->gpr[1] = newsp;
regs->gpr[3] = sig;
@@ -829,7 +829,6 @@ static int handle_rt_signal(unsigned long sig, struct k_sigaction *ka,
regs->gpr[5] = (unsigned long) &rt_sf->uc;
regs->gpr[6] = (unsigned long) rt_sf;
regs->nip = (unsigned long) ka->sa.sa_handler;
- regs->link = (unsigned long) frame->tramp;
regs->trap = 0;
#ifdef CONFIG_PPC64
regs->result = 0;