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USB: console: add dummy __module_get
Add call to __module_get when initialising the fake tty in usb_console_setup to match the module_put in release_one_tty. Note that the tty-driver (i.e. usb-serial core) must be compiled-in to enable the usb console so the __module_get is essentially a noop as driver->owner will be null. Reported-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Johan Hovold <johan@kernel.org>
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@ -14,6 +14,7 @@
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/slab.h>
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#include <linux/tty.h>
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#include <linux/console.h>
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@ -144,6 +145,7 @@ static int usb_console_setup(struct console *co, char *options)
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init_ldsem(&tty->ldisc_sem);
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INIT_LIST_HEAD(&tty->tty_files);
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kref_get(&tty->driver->kref);
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__module_get(tty->driver->owner);
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tty->ops = &usb_console_fake_tty_ops;
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if (tty_init_termios(tty)) {
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retval = -ENOMEM;
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