[Bug libc/23017] daemon(0,0) doesn't report meaningfull errno (not set) if redirect fails

[schwab@linux-m68k.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=23017

Andreas Schwab <schwab@linux-m68k.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |WAITING
   Last reconfirmed|                            |2018-03-29
     Ever confirmed|0                           |1

--- Comment #1 from Andreas Schwab <schwab@linux-m68k.org> ---
I cannot reproduce that, errno is explicitly set to ENODEV if /dev/null exists
but is not a char device.  Make sure that the caller does not lose errno.

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