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greybus: uart: fix double free of tty port

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When inserting and removing a module with a UART protocol defined a
double free of the tty_port would happen and that would generate a lot
of kernel oops in different places related to memory corruption.

Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
This commit is contained in:
Rui Miguel Silva 2016-02-05 13:50:37 +00:00 • committed by Greg Kroah-Hartman
commit 9d4bb6c918
1 changed files with 0 additions and 1 deletions
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1
drivers/staging/greybus/uart.c
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@ -701,7 +701,6 @@ static void gb_uart_connection_exit(struct gb_connection *connection)
/* FIXME - free transmit / receive buffers */
tty_port_put(&gb_tty->port);
tty_port_destroy(&gb_tty->port);
kfree(gb_tty->buffer);
kfree(gb_tty);