pty: If the administrator creates a device for a ptmx slave we should not error

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The open path for ptmx slaves is via the ptmx device. Opening them any
other way is not allowed. Vegard Nossum found that previously this was not
the case and mknod foo c 128 42; cat foo would produce nasty diagnostics

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

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Alan Cox 2008-10-13 10:41:03 +01:00 • committed by Linus Torvalds

parent dbda4c0b97

commit 15582d36a1

1 changed files with 12 additions and 6 deletions

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18

drivers/char/tty_io.c

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