stable inclusion
from stable-v5.10.110
commit be703360ed355bdac1f3b472ebeb9c1a33e49b96
bugzilla: https://gitee.com/openeuler/kernel/issues/I574AL

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=be703360ed355bdac1f3b472ebeb9c1a33e49b96

--------------------------------

[ Upstream commit 7e476071 ]

As the possible failure of the ioremap(), the 'local->sram' and other
two could be NULL.
Therefore it should be better to check it in order to avoid the later
dev_dbg.

Fixes: 1da177e4 ("Linux-2.6.12-rc2")
Signed-off-by: NJiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: NKalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20211230022926.1846757-1-jiasheng@iscas.ac.cnSigned-off-by: NSasha Levin <sashal@kernel.org>
Signed-off-by: NYu Liao <liaoyu15@huawei.com>
Reviewed-by: NWei Li <liwei391@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>