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authorJohan Hovold <johan@kernel.org>2021-09-17 12:12:04 +0200
committerDavid S. Miller <davem@davemloft.net>2021-09-17 11:19:58 +0100
commite8f69b16ee776da88589b5271e3f46020efc8f6c (patch)
tree227611cd50cddf3faa10caa0a522ecd55643304d /lib/packing.c
parentfc0c0548c1a2e676d3a928aaed70f2d4d254e395 (diff)
net: hso: fix muxed tty registration
If resource allocation and registration fail for a muxed tty device (e.g. if there are no more minor numbers) the driver should not try to deregister the never-registered (or already-deregistered) tty. Fix up the error handling to avoid dereferencing a NULL pointer when attempting to remove the character device. Fixes: 72dc1c096c70 ("HSO: add option hso driver") Cc: stable@vger.kernel.org # 2.6.27 Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'lib/packing.c')
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