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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-04-26 13:31:05 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-04-26 13:31:05 -0700 |
| commit | 7f9f44308c8993c9ab8078d174dad34bea3e82d7 (patch) | |
| tree | cc6f3d146ff813e34ad0ab84673a7b2248a304c7 /arch/cris/arch-v32/kernel/signal.c | |
| parent | 63905bba5b0170492777b327ac5e2aaef64989d6 (diff) | |
| parent | d939b52abe0cee9cc3167f554da6b864db86d3f2 (diff) | |
Merge tag 'cris-for-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/jesper/cris
Pull arch/cris updates from Jesper Nilsson:
"Some much needed love for the CRIS-port.
There's a bunch of changes this time, giving the CRISv32 port a bit of
modern makeover with device-tree, irq domain and gpiolib support, and
more switchover to generic frameworks.
Some small fixes and removal of the theoretical SMP support brings up
the rear"
* tag 'cris-for-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/jesper/cris:
cris: fix integer overflow in ELF_ET_DYN_BASE
CRISv32: use GENERIC_SCHED_CLOCK
CRISv32: use MMIO clocksource
CRISv32: use generic clockevents
CRIS: use generic headers via Kbuild
CRIS: use generic cmpxchg.h
CRIS: use generic atomic.h
CRIS: use generic atomic bitops
CRISv10: remove redundant macros from system.h
CRIS: remove SMP code
CRISv32: don't enable irqs in INIT_THREAD
CRISv32: handle multiple signals
CRISv32: prevent bogus restarts on sigreturn
CRISv32: don't attempt syscall restart on irq exit
Add binding documentation for CRIS
CRIS: add Axis 88 board device tree
CRISv32: add device tree support
CRISv32: add irq domains support
CRIS: enable GPIOLIB
Diffstat (limited to 'arch/cris/arch-v32/kernel/signal.c')
| -rw-r--r-- | arch/cris/arch-v32/kernel/signal.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/cris/arch-v32/kernel/signal.c b/arch/cris/arch-v32/kernel/signal.c index 0c9ce9eac614..3a36ae6b79d5 100644 --- a/arch/cris/arch-v32/kernel/signal.c +++ b/arch/cris/arch-v32/kernel/signal.c @@ -72,6 +72,9 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc) /* Make that the user-mode flag is set. */ regs->ccs |= (1 << (U_CCS_BITNR + CCS_SHIFT)); + /* Don't perform syscall restarting */ + regs->exs = -1; + /* Restore the old USP. */ err |= __get_user(old_usp, &sc->usp); wrusp(old_usp); @@ -425,6 +428,8 @@ do_signal(int canrestart, struct pt_regs *regs) { struct ksignal ksig; + canrestart = canrestart && ((int)regs->exs >= 0); + /* * The common case should go fast, which is why this point is * reached from kernel-mode. If that's the case, just return |