git: DragonFly_RELEASE_6_4 kern: Fix mmioctl() to return ENOTTY for unknown devices

[Aaron LI]

commit e13f232a054d1e45a455142b3df9345870e03406
Author: Aaron LI <aly at aaronly.me>
Date:   Thu Oct 1 20:53:28 2026 +0800

    kern: Fix mmioctl() to return ENOTTY for unknown devices
    
    The default case for unknown devices handles /dev/null and previously
    returned ENODEV for tcsetattr/tcgetattr/tc* requests, which should be
    ENOTTY as specified by POSIX (as well as documented in the man pages).
    
    Fix the bug by correcting mmioctl() to return ENOTTY in the default
    case.
    
    Patch-by: jpikin, sigttou (David Bidner)
    Bug: https://bugs.dragonflybsd.org/issues/3252

Summary of changes:
 sys/kern/kern_memio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/e13f232a054d1e45a455142b3df9345870e03406


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