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Fix waitpid(2) when the status pointer is NULL.

This commit is contained in:
Jonas 'Sortie' Termansen 2018-07-17 15:43:09 +02:00
parent f744e80b88
commit c14e6c05b9
1 changed files with 3 additions and 1 deletions
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4
kernel/process.cpp
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@ -518,7 +518,9 @@ pid_t sys_waitpid(pid_t pid, int* user_status, int options)
{
int status = 0;
pid_t ret = CurrentProcess()->Wait(pid, &status, options);
if ( 0 < ret && !CopyToUser(user_status, &status, sizeof(status)) )
if ( 0 < ret &&
user_status &&
!CopyToUser(user_status, &status, sizeof(status)) )
return -1;
return ret;
}