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author | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-01-03 22:55:21 (GMT) |
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committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-01-03 22:55:21 (GMT) |
commit | 04228460a3ded723b2da09141c76c45ddd712caf (patch) | |
tree | db7b9143b150ead1e9fec10760a1d5ff4045a5e7 /arch/tile/kernel/signal.c | |
parent | 7c0ab43e6ab09d72dc8dbac2521b2f819ccc4026 (diff) | |
parent | 24c78557741395e038e83f25367cf2bfd7f582b8 (diff) | |
download | linux-fsl-qoriq-04228460a3ded723b2da09141c76c45ddd712caf.tar.xz |
Merge branch 'fix' of git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6
Diffstat (limited to 'arch/tile/kernel/signal.c')
-rw-r--r-- | arch/tile/kernel/signal.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/arch/tile/kernel/signal.c b/arch/tile/kernel/signal.c index 757407e..1260321 100644 --- a/arch/tile/kernel/signal.c +++ b/arch/tile/kernel/signal.c @@ -52,7 +52,7 @@ SYSCALL_DEFINE3(sigaltstack, const stack_t __user *, uss, */ int restore_sigcontext(struct pt_regs *regs, - struct sigcontext __user *sc, long *pr0) + struct sigcontext __user *sc) { int err = 0; int i; @@ -75,17 +75,15 @@ int restore_sigcontext(struct pt_regs *regs, regs->faultnum = INT_SWINT_1_SIGRETURN; - err |= __get_user(*pr0, &sc->gregs[0]); return err; } -/* sigreturn() returns long since it restores r0 in the interrupted code. */ +/* The assembly shim for this function arranges to ignore the return value. */ SYSCALL_DEFINE1(rt_sigreturn, struct pt_regs *, regs) { struct rt_sigframe __user *frame = (struct rt_sigframe __user *)(regs->sp); sigset_t set; - long r0; if (!access_ok(VERIFY_READ, frame, sizeof(*frame))) goto badframe; @@ -98,13 +96,13 @@ SYSCALL_DEFINE1(rt_sigreturn, struct pt_regs *, regs) recalc_sigpending(); spin_unlock_irq(¤t->sighand->siglock); - if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &r0)) + if (restore_sigcontext(regs, &frame->uc.uc_mcontext)) goto badframe; if (do_sigaltstack(&frame->uc.uc_stack, NULL, regs->sp) == -EFAULT) goto badframe; - return r0; + return 0; badframe: force_sig(SIGSEGV, current); |