summaryrefslogtreecommitdiffstats
path: root/drivers/net
diff options
context:
space:
mode:
authorFlorian Fainelli <f.fainelli@gmail.com>2017-09-09 00:38:07 +0200
committerDavid S. Miller <davem@davemloft.net>2017-09-09 06:12:40 +0200
commita010a2f6540ecc39f8701c6f7d35e22992c03fb6 (patch)
tree5970aa0631cfc54234919178951142220bb36d24 /drivers/net
parentMerge branch 'xdp-bpf-fixes' (diff)
downloadlinux-a010a2f6540ecc39f8701c6f7d35e22992c03fb6.tar.xz
linux-a010a2f6540ecc39f8701c6f7d35e22992c03fb6.zip
Revert "mdio_bus: Remove unneeded gpiod NULL check"
This reverts commit 95b80bf3db03c2bf572a357cf74b9a6aefef0a4a ("mdio_bus: Remove unneeded gpiod NULL check"), this commit assumed that GPIOLIB checks for NULL descriptors, so it's safe to drop them, but it is not when CONFIG_GPIOLIB is disabled in the kernel. If we do call gpiod_set_value_cansleep() on a GPIO descriptor we will issue warnings coming from the inline stubs declared in include/linux/gpio/consumer.h. Fixes: 95b80bf3db03 ("mdio_bus: Remove unneeded gpiod NULL check") Reported-by: Woojung Huh <Woojung.Huh@microchip.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/phy/mdio_bus.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c
index b6f9fa670168..2df7b62c1a36 100644
--- a/drivers/net/phy/mdio_bus.c
+++ b/drivers/net/phy/mdio_bus.c
@@ -399,7 +399,8 @@ error:
}
/* Put PHYs in RESET to save power */
- gpiod_set_value_cansleep(bus->reset_gpiod, 1);
+ if (bus->reset_gpiod)
+ gpiod_set_value_cansleep(bus->reset_gpiod, 1);
device_del(&bus->dev);
return err;
@@ -424,7 +425,8 @@ void mdiobus_unregister(struct mii_bus *bus)
}
/* Put PHYs in RESET to save power */
- gpiod_set_value_cansleep(bus->reset_gpiod, 1);
+ if (bus->reset_gpiod)
+ gpiod_set_value_cansleep(bus->reset_gpiod, 1);
device_del(&bus->dev);
}