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Diffstat (limited to 'drivers/tty/serial/zs.c')
-rw-r--r--drivers/tty/serial/zs.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/tty/serial/zs.c b/drivers/tty/serial/zs.c
index 70969bf9d82c..5bc58591665a 100644
--- a/drivers/tty/serial/zs.c
+++ b/drivers/tty/serial/zs.c
@@ -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);
}