s390/3270: fix return value check in tty3270_resize_work()
authorWei Yongjun <yongjun_wei@trendmicro.com.cn>
Tue, 10 Sep 2013 22:49:20 +0000 (06:49 +0800)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>
Mon, 30 Sep 2013 11:04:38 +0000 (13:04 +0200)
commit8f0ba630af45235a6866054704531d49e524e49a
treef16ad79e8df676bd837dc36d5d05f2dc789e8112
parent15c03dd4859ab16f9212238f29dd315654aa94f6
s390/3270: fix return value check in tty3270_resize_work()

In case of error, the function tty3270_alloc_screen() returns ERR_PTR()
and never returns NULL. The NULL test in the return value check should
be replaced with IS_ERR().

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
drivers/s390/char/tty3270.c