Fix general protection fault in uninitialized mem.

Following are test log on x86:
----------------------------------------------------------

root@d610-2:/opt/ltp-full/testcases/bin> ./rt_sigsuspend01 Segmentation
fault

and messages of rt_sigsuspend01 when dmesg:

root@d610-2:/opt/ltp-full/testcases/bin> dmesg | tail

VFS: Mounted root (nfs filesystem) on device 0:13.
Freeing unused kernel memory: 344k freed
intel_rng: FWH not detected
ip_tables: (C) 2000-2006 Netfilter Core Team
NET: Registered protocol family 10
SCTP: Hash tables configured (established 16384 bind 32768)
eth0: no IPv6 routers present

***rt_sigsuspend01[865] general protection ip:bfa8b780 sp:bfa8b120
error:0

After apply the patch:

root@d610-2:/opt/ltp-full/testcases/bin> ./rt_sigsuspend01
rt_sigsuspend01    1  TPASS  :  rt_sigsuspend PASSED

Signed-off-by: Yingang Fu <Yingang.Fu@windriver.com>
Acked-by: Garrett Cooper <yanegomi@gmail.com>
1 file changed