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| author | J. Bruce Fields <bfields@redhat.com> | 2011-01-11 10:28:36 -0500 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2011-01-11 15:02:19 -0500 |
| commit | a2c50f69168deec3f7e47644eb4ef4f8a3ee6910 (patch) | |
| tree | 987197653dcdbf3d33a7c678dbef9cc884f36afa /arch/tile/kernel/signal.c | |
| parent | 8c3df3e58cde676de4df9363c00f37dbfce08e5c (diff) | |
| parent | 3c0eee3fe6a3a1c745379547c7e7c904aa64f6d5 (diff) | |
| download | linux-a2c50f69168deec3f7e47644eb4ef4f8a3ee6910.tar.bz2 | |
Merge commit 'v2.6.37' into for-2.6.38-incoming
I made a slight mess of Documentation/filesystems/Locking; resolve
conflicts with upstream before fixing it up.
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 757407e36696..1260321155f1 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); |