serial: fix NULL pointer dereference

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If kzalloc() or alloc_tty_driver() fails, we call:
    put_tty_driver(normal = NULL).

Then:
    put_tty_driver -> tty_driver_kref_put -> kref_put(&NULL->kref, ...)

Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

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André Goddard Rosa 2009-10-25 11:16:32 -02:00 • committed by Greg Kroah-Hartman

parent 2a0785ea37

commit 9e845abfc8

1 changed files with 11 additions and 10 deletions

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drivers/serial/serial_core.c

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