s390/unwind: unify task is current checks
authorVasily Gorbik <gor@linux.ibm.com>
Fri, 22 Nov 2019 11:35:34 +0000 (12:35 +0100)
committerVasily Gorbik <gor@linux.ibm.com>
Sat, 30 Nov 2019 09:52:45 +0000 (10:52 +0100)
commit103b4cca60d2c8c51f1290cc984b7046ccb8b46d
tree505c6574f045baadc36ddc70154e3a433a45a2e9
parent7f28dad395243c5026d649136823bbc40029a828
s390/unwind: unify task is current checks

Avoid mixture of task == NULL and task == current meaning the same
thing and simply always initialize task with current in unwind_start.

Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
arch/s390/include/asm/stacktrace.h
arch/s390/include/asm/unwind.h
arch/s390/kernel/dumpstack.c