diff options
| author | Pavel Machek <pavel@denx.de> | 2020-06-06 17:11:46 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-06-27 16:12:45 +0200 |
| commit | 894b867ac9dc6906022c27ace2339418db666002 (patch) | |
| tree | 4abef0e3f89999a17e00683e654d25f047fef155 /drivers/tty | |
| parent | 167cbce27444be3203081b97ea65178c4088b062 (diff) | |
| download | linux-894b867ac9dc6906022c27ace2339418db666002.tar.bz2 | |
8250-men-mcb: fix signed/unsigned confusion
get_num_ports returns -ENODEV, and the result is stored in int, so it
should not be unsigned. Zero ports does not seem to make sense, so
make that check consistent.
Signed-off-by: Pavel Machek (CIP) <pavel@denx.de>
Link: https://lore.kernel.org/r/20200606151146.GA10940@amd
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/serial/8250/8250_men_mcb.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/tty/serial/8250/8250_men_mcb.c b/drivers/tty/serial/8250/8250_men_mcb.c index e985f344b2dd..737c4c31e8a0 100644 --- a/drivers/tty/serial/8250/8250_men_mcb.c +++ b/drivers/tty/serial/8250/8250_men_mcb.c @@ -51,7 +51,7 @@ static u32 men_lookup_uartclk(struct mcb_device *mdev) return clkval; } -static unsigned int get_num_ports(struct mcb_device *mdev, +static int get_num_ports(struct mcb_device *mdev, void __iomem *membase) { switch (mdev->id) { @@ -140,7 +140,7 @@ static void serial_8250_men_mcb_remove(struct mcb_device *mdev) return; num_ports = get_num_ports(mdev, data[0].uart.port.membase); - if (num_ports < 0 || num_ports > 4) { + if (num_ports <= 0 || num_ports > 4) { dev_err(&mdev->dev, "error retrieving number of ports!\n"); return; } |