Revert "USB: bcma: Add a check for devm_gpiod_get"

This reverts commit f3de5d857bb2362b00e2a8d4bc886cd49dcb66db.

That commit broke USB on all routers that have USB always powered on and
don't require toggling any GPIO. It's a majority of devices actually.

The original code worked and seemed safe: vcc GPIO is optional and
bcma_hci_platform_power_gpio() takes care of checking the pointer before
using it.

This revert fixes:
[   10.801127] bcma_hcd: probe of bcma0:11 failed with error -2

Fixes: f3de5d857bb2 ("USB: bcma: Add a check for devm_gpiod_get")
Cc: stable <stable@vger.kernel.org>
Cc: Chuhong Yuan <hslester96@gmail.com>
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Link: https://lore.kernel.org/r/20210831065419.18371-1-zajec5@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/host/bcma-hcd.c b/drivers/usb/host/bcma-hcd.c
index 337b425..2df52f7 100644 (file)
--- a/drivers/usb/host/bcma-hcd.c
+++ b/drivers/usb/host/bcma-hcd.c
@@ -406,12 +406,9 @@ static int bcma_hcd_probe(struct bcma_device *core)
                return -ENOMEM;
        usb_dev->core = core;
 
-       if (core->dev.of_node) {
+       if (core->dev.of_node)
                usb_dev->gpio_desc = devm_gpiod_get(&core->dev, "vcc",
                                                    GPIOD_OUT_HIGH);
-               if (IS_ERR(usb_dev->gpio_desc))
-                       return PTR_ERR(usb_dev->gpio_desc);
-       }
 
        switch (core->id.id) {
        case BCMA_CORE_USB20_HOST: