diff options
| author | JP Abgrall <jpa@google.com> | 2013-04-29 16:07:00 -0700 |
|---|---|---|
| committer | Nitin Garg <nitin.garg@freescale.com> | 2014-04-21 22:35:13 -0500 |
| commit | c94e3e3578e719f99e7cd26c67507b764a0134aa (patch) | |
| tree | bb54d1435267cf4eb597c16a2ffc6031c9761222 /arch | |
| parent | 2e1ed4a031809ba32d88523b878387e186d6118b (diff) | |
ARM: fault: assume no context when IRQs are disabled during data abort.
Bail out early if IRQs are disabled in do_page_fault or else
[14415.157266] BUG: sleeping function called from invalid context at arch/arm/mm/fault.c:301
Russell King's idea from
http://comments.gmane.org/gmane.linux.ports.arm.omap/59256
Signed-off-by: JP Abgrall <jpa@google.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mm/fault.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c index 5dbf13f954f6..b835c9e3b770 100644 --- a/arch/arm/mm/fault.c +++ b/arch/arm/mm/fault.c @@ -276,10 +276,10 @@ do_page_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs) local_irq_enable(); /* - * If we're in an interrupt or have no user + * If we're in an interrupt, or have no irqs, or have no user * context, we must not take the fault.. */ - if (in_atomic() || !mm) + if (in_atomic() || irqs_disabled() || !mm) goto no_context; /* |