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ia64: can't reach do_signal() when returning to kernel mode

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2012-05-01 18:37:16 -04:00
parent af445f45ed
commit cf880248c5
1 changed files with 0 additions and 8 deletions
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8
arch/ia64/kernel/signal.c
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@ -437,14 +437,6 @@ ia64_do_signal (struct sigscratch *scr, long in_syscall)
long restart = in_syscall;
long errno = scr->pt.r8;
/*
* In the ia64_leave_kernel code path, we want the common case to go fast, which
* is why we may in certain cases get here from kernel mode. Just return without
* doing anything if so.
*/
if (!user_mode(&scr->pt))
return;
/*
* This only loops in the rare cases of handle_signal() failing, in which case we
* need to push through a forced SIGSEGV.