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m68k: Missing syscall_trace() on sigreturn 

If we leave sigreturn via ret_from_signal, we end up with syscall
trace only on entry, leading to very unhappy strace, among other
things.  Note that this means different behaviours for signals
delivered while we were in pagefault and for ones delivered while
we were in interrupt...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
This commit is contained in:
Al Viro 2010-10-11 23:13:51 -04:00 committed by Geert Uytterhoeven
parent ea52b58ccb
commit bd6f56a75b
1 changed files with 4 additions and 1 deletions
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5
arch/m68k/kernel/entry.S
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@ -99,7 +99,10 @@ do_trace_exit:
jra .Lret_from_exception
ENTRY(ret_from_signal)
RESTORE_SWITCH_STACK
tstb %curptr@(TASK_INFO+TINFO_FLAGS+2)
jge 1f
jbsr syscall_trace
1: RESTORE_SWITCH_STACK
addql #4,%sp
/* on 68040 complete pending writebacks if any */
#ifdef CONFIG_M68040