Input: gscps2 - check return value of ioremap() in gscps2_probe()

stable inclusion
from stable-v5.10.137
commit bda7046d4d59a2224a689ed0129ef152a6761cf6
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I60PLB

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=bda7046d4d59a2224a689ed0129ef152a6761cf6



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commit e61b3125 upstream.

The function ioremap() in gscps2_probe() can fail, so
its return value should be checked.

Fixes: 4bdc0d67 ("remove ioremap_nocache and devm_ioremap_nocache")
Cc: <stable@vger.kernel.org> # v5.6+
Reported-by: Hacash Robot <hacashRobot@santino.com>
Signed-off-by: Xie Shaowen <studentxswpy@163.com>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>
Reviewed-by: Wei Li <liwei391@huawei.com>