evie/android_kernel_oneplus_msm8998
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[S390] Make sure the restore psw masks are initialized.

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In case of TRACE_IRQFLAGS the restore psw masks will not be
initialized if noexec is turned on. This will lead to an
immediate system crash.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Heiko Carstens 2007-12-04 16:09:05 +01:00 • committed by Martin Schwidefsky
parent ab1809b4ed
commit 7af0d6f753
1 changed files with 1 additions and 3 deletions
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4
arch/s390/kernel/setup.c
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@ -486,9 +486,7 @@ static void setup_addressing_mode(void)
if (s390_noexec) { if (s390_noexec) {
printk("S390 execute protection active, "); printk("S390 execute protection active, ");
set_amode_and_uaccess(PSW_ASC_SECONDARY, PSW32_ASC_SECONDARY); set_amode_and_uaccess(PSW_ASC_SECONDARY, PSW32_ASC_SECONDARY);
return; } else if (switch_amode) {
}
if (switch_amode) {
printk("S390 address spaces switched, "); printk("S390 address spaces switched, ");
set_amode_and_uaccess(PSW_ASC_PRIMARY, PSW32_ASC_PRIMARY); set_amode_and_uaccess(PSW_ASC_PRIMARY, PSW32_ASC_PRIMARY);
} }