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Commit 0b91f45b authored by Suresh Siddha's avatar Suresh Siddha Committed by H. Peter Anvin
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x86, compat: Use test_thread_flag(TIF_IA32) in compat signal delivery 



Signal delivery compat path may not have the 'TS_COMPAT' flag (that
flag indicates how we entered the kernel).  So use
test_thread_flag(TIF_IA32) instead of is_ia32_task(): one of the
functions of TIF_IA32 is just what kind of signal frame we want.

Signed-off-by: default avatarSuresh Siddha <suresh.b.siddha@intel.com>
Link: http://lkml.kernel.org/r/1339722435.3475.57.camel@sbsiddha-desk.sc.intel.com


Cc: stable@kernel.org	# v3.4
Signed-off-by: default avatarH. Peter Anvin <hpa@zytor.com>
parent 161270fc

arch/x86/ia32/ia32_signal.c

+1 −1
Original line number Diff line number Diff line
@@ -38,7 +38,7 @@ 
int copy_siginfo_to_user32(compat_siginfo_t __user *to, siginfo_t *from)

{

	int err = 0;

	bool ia32 = is_ia32_task();

	bool ia32 = test_thread_flag(TIF_IA32);



	if (!access_ok(VERIFY_WRITE, to, sizeof(compat_siginfo_t)))

		return -EFAULT;