1CALL_USERMODEHELPER_(9)         Module Support         CALL_USERMODEHELPER_(9)
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NAME

6       call_usermodehelper_setfns - set a cleanup/init function
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SYNOPSIS

9       void call_usermodehelper_setfns(struct subprocess_info * info,
10                                       int (*init) (struct subprocess_info *info),
11                                       void (*cleanup) (struct subprocess_info *info),
12                                       void * data);
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ARGUMENTS

15       info
16           a subprocess_info returned by call_usermodehelper_setup
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18       init
19           an init function
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21       cleanup
22           a cleanup function
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24       data
25           arbitrary context sensitive data
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DESCRIPTION

28       The init function is used to customize the helper process prior to
29       exec. A non-zero return code causes the process to error out, exit, and
30       return the failure to the calling process
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32       The cleanup function is just before ethe subprocess_info is about to be
33       freed. This can be used for freeing the argv and envp. The Function
34       must be runnable in either a process context or the context in which
35       call_usermodehelper_exec is called.
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38Kernel Hackers Manual 2.6.         June 2019           CALL_USERMODEHELPER_(9)
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