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| author | Michal Marek <mmarek@suse.cz> | 2010-12-01 13:13:56 +0100 |
|---|---|---|
| committer | Michal Marek <mmarek@suse.cz> | 2010-12-01 13:13:56 +0100 |
| commit | 307991055b0ce65d53dc1eb501c456c10eb36360 (patch) | |
| tree | 71bb9263dc71344e5d7b97ca6d5cf223f1f1a856 /arch/tile/kernel/signal.c | |
| parent | 1198c6d45a1ef5f4f7fdfbf33ef7d270493ec575 (diff) | |
| parent | 9b4320b77bab4031649c484da1c595f39c2e43cd (diff) | |
Merge branch 'kconfig_fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-next into kbuild/rc-fixes
Diffstat (limited to 'arch/tile/kernel/signal.c')
| -rw-r--r-- | arch/tile/kernel/signal.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/arch/tile/kernel/signal.c b/arch/tile/kernel/signal.c index fb28e85ae3a..687719d4abd 100644 --- a/arch/tile/kernel/signal.c +++ b/arch/tile/kernel/signal.c @@ -71,6 +71,9 @@ int restore_sigcontext(struct pt_regs *regs, for (i = 0; i < sizeof(struct pt_regs)/sizeof(long); ++i) err |= __get_user(regs->regs[i], &sc->gregs[i]); + /* Ensure that the PL is always set to USER_PL. */ + regs->ex1 = PL_ICS_EX1(USER_PL, EX1_ICS(regs->ex1)); + regs->faultnum = INT_SWINT_1_SIGRETURN; err |= __get_user(*pr0, &sc->gregs[0]); @@ -330,7 +333,7 @@ void do_signal(struct pt_regs *regs) current_thread_info()->status &= ~TS_RESTORE_SIGMASK; } - return; + goto done; } /* Did we come from a system call? */ @@ -358,4 +361,8 @@ void do_signal(struct pt_regs *regs) current_thread_info()->status &= ~TS_RESTORE_SIGMASK; sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL); } + +done: + /* Avoid double syscall restart if there are nested signals. */ + regs->faultnum = INT_SWINT_1_SIGRETURN; } |