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Correct the killpg(2) return values:
authoreadler <eadler@FreeBSD.org>
Mon, 22 Oct 2012 03:34:43 +0000 (03:34 +0000)
committereadler <eadler@FreeBSD.org>
Mon, 22 Oct 2012 03:34:43 +0000 (03:34 +0000)
commitf48bd672c6ce3205caee89a211bbf9e4dc081384
treeca58d80237e63e97587bb433636e93d011a9094d
parent4bc19b04c5658de751c40ddf1399ab0dd1d895e7
Correct the killpg(2) return values:

Return EPERM if processes were found but they
were unable to be signaled.

Return the first error from p_cansignal if no signal was successful.

Reviewed by: jilles
Approved by: cperciva
MFC after: 1 week
sys/kern/kern_sig.c