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serial: zs: use NULL as a pointer, not 0

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struct uart_port::membase is declared as a pointer. So it should be
initialized by NULL, not zero constant.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20220421101708.5640-5-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jiri Slaby 2022-04-21 12:17:05 +02:00 committed by Greg Kroah-Hartman
parent 08814cd69d
commit e48b68ab0c
1 changed files with 1 additions and 1 deletions
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2
drivers/tty/serial/zs.c
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@ -981,7 +981,7 @@ static const char *zs_type(struct uart_port *uport)
static void zs_release_port(struct uart_port *uport)
{
iounmap(uport->membase);
uport->membase = 0;
uport->membase = NULL;
release_mem_region(uport->mapbase, ZS_CHAN_IO_SIZE);
}