tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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>
authored by
Anton Blanchard
and committed by
Michael Ellerman
63af5262
e35735b9
+10
-10
+10
-10
arch/powerpc/mm/fault.c
+10
-10
arch/powerpc/mm/fault.c
···
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up_read(¤t->mm->mmap_sem);
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-
if (user_mode(regs)) {
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-
current->thread.trap_nr = BUS_ADRERR;
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-
info.si_signo = SIGBUS;
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info.si_errno = 0;
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info.si_code = BUS_ADRERR;
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info.si_addr = (void __user *)address;
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force_sig_info(SIGBUS, &info, current);
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return MM_FAULT_RETURN;
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}
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return MM_FAULT_ERR(SIGBUS);
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if (!user_mode(regs))
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return MM_FAULT_ERR(SIGBUS);
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current->thread.trap_nr = BUS_ADRERR;
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info.si_signo = SIGBUS;
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info.si_errno = 0;
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info.si_code = BUS_ADRERR;
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info.si_addr = (void __user *)address;
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force_sig_info(SIGBUS, &info, current);
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return MM_FAULT_RETURN;
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}
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static int mm_fault_error(struct pt_regs *regs, unsigned long addr, int fault)