Fixed two issue of variable not being initialized which could cause wrong results #1985
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…ld cause wrong results
…ld cause wrong results
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1. 这个PR修复的是什么问题？
第一处没有对PWM接口进行初始化，没有分配PWM相关资源
第二处虽然分配了PWM相关资源，但对于缺少了相关分配空间是否成功的ret判断
2. 这个PR不修复具体会带来什么后果？
未初始化分配资源导致错误
程序流判断错误
3. PR修复方案的依据是什么？
第一处使用函数csi_pwn_init( ) 进行初始化
第二处添加if判断保证完成与csi_pwn_init( )源码一样的效果
4. 在什么环境下测试或者验证过？
all