auxdisplay: charlcd: Introduce charlcd_free() helper
The charlcd_free() is a counterpart to charlcd_alloc() and should be called symmetrically on tear down. Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
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@ -818,6 +818,12 @@ struct charlcd *charlcd_alloc(unsigned int drvdata_size)
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}
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EXPORT_SYMBOL_GPL(charlcd_alloc);
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void charlcd_free(struct charlcd *lcd)
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{
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kfree(charlcd_to_priv(lcd));
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}
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EXPORT_SYMBOL_GPL(charlcd_free);
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static int panel_notify_sys(struct notifier_block *this, unsigned long code,
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void *unused)
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{
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@ -35,6 +35,7 @@ struct charlcd_ops {
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};
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struct charlcd *charlcd_alloc(unsigned int drvdata_size);
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void charlcd_free(struct charlcd *lcd);
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int charlcd_register(struct charlcd *lcd);
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int charlcd_unregister(struct charlcd *lcd);
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