diff options
| author |   Anton Blanchard <anton@samba.org> | 2014-09-24 16:59:56 +1000 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2014-10-02 17:15:09 +1000 |
| commit | 63af52629adcd1313c7db252f085263012ecd9db (patch) | |
| tree | df5ebd131aab516a35aa78a557696fe03af721c0 /arch/powerpc | |
| parent | powerpc: Speed up clear_page by unrolling it (diff) | |
| download | linux-dev-63af52629adcd1313c7db252f085263012ecd9db.tar.xz linux-dev-63af52629adcd1313c7db252f085263012ecd9db.zip | |
powerpc: Simplify do_sigbus
Exit out early for a kernel fault, avoiding indenting of
most of the function.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/mm/fault.c | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c index 51ab9e7e6c39..abc8c816a326 100644 --- a/arch/powerpc/mm/fault.c +++ b/arch/powerpc/mm/fault.c @@ -120,16 +120,16 @@ static int do_sigbus(struct pt_regs *regs, unsigned long address) up_read(¤t->mm->mmap_sem); - if (user_mode(regs)) { - current->thread.trap_nr = BUS_ADRERR; - info.si_signo = SIGBUS; - info.si_errno = 0; - info.si_code = BUS_ADRERR; - info.si_addr = (void __user *)address; - force_sig_info(SIGBUS, &info, current); - return MM_FAULT_RETURN; - } - return MM_FAULT_ERR(SIGBUS); + if (!user_mode(regs)) + return MM_FAULT_ERR(SIGBUS); + + current->thread.trap_nr = BUS_ADRERR; + info.si_signo = SIGBUS; + info.si_errno = 0; + info.si_code = BUS_ADRERR; + info.si_addr = (void __user *)address; + force_sig_info(SIGBUS, &info, current); + return MM_FAULT_RETURN; } static int mm_fault_error(struct pt_regs *regs, unsigned long addr, int fault) |