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serial: mxs: fix buffer overflow
SMATCH correctly found an off-by-one error: drivers/tty/serial/mxs-auart.c:889 auart_console_write() error: buffer overflow 'auart_port' 5 <= 5 Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -883,7 +883,7 @@ auart_console_write(struct console *co, const char *str, unsigned int count)
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unsigned int old_ctrl0, old_ctrl2;
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unsigned int to = 1000;
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if (co->index > MXS_AUART_PORTS || co->index < 0)
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if (co->index >= MXS_AUART_PORTS || co->index < 0)
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return;
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s = auart_port[co->index];
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