From: Tang Bin <tangbin@xxxxxxxxxxxxxxxxxxxx>
Date: Thu, 7 May 2020 19:50:10 +0800
Use IS_ERR() and PTR_ERR() instead of PTR_ZRR_OR_ZERO()Saeed, please pick this up.
to simplify code, avoid redundant judgements.
Signed-off-by: Zhang Shengju <zhangshengju@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Tang Bin <tangbin@xxxxxxxxxxxxxxxxxxxx>