On 3/12/22 18:22, Wolfgang Grandegger wrote:
dev_read_size() returns -EINVAL (-22) if the property does not exist.

Which property ?

Signed-off-by: Wolfgang Grandegger <w...@aries-embedded.de>
---
  drivers/usb/gadget/dwc2_udc_otg.c | 6 +++---
  1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/gadget/dwc2_udc_otg.c 
b/drivers/usb/gadget/dwc2_udc_otg.c
index 2748270..00f7e8e 100644
--- a/drivers/usb/gadget/dwc2_udc_otg.c
+++ b/drivers/usb/gadget/dwc2_udc_otg.c
@@ -996,8 +996,9 @@ static int dwc2_udc_otg_of_to_plat(struct udevice *dev)
        plat->rx_fifo_sz = dev_read_u32_default(dev, "g-rx-fifo-size", 0);
        plat->np_tx_fifo_sz = dev_read_u32_default(dev, "g-np-tx-fifo-size", 0);
- plat->tx_fifo_sz_nb =
-               dev_read_size(dev, "g-tx-fifo-size") / sizeof(u32);
+       ret = dev_read_size(dev, "g-tx-fifo-size");
+       if (ret > 0)
+               platdata->tx_fifo_sz_nb = ret / sizeof(u32);

If ret <= 0, then platdata->tx_fifo_sz_nb is now uninitialized ?

        if (plat->tx_fifo_sz_nb > DWC2_MAX_HW_ENDPOINTS)
                plat->tx_fifo_sz_nb = DWC2_MAX_HW_ENDPOINTS;
        if (plat->tx_fifo_sz_nb) {
@@ -1052,7 +1053,6 @@ static int dwc2_udc_otg_reset_init(struct udevice *dev,
                return ret;
ret = reset_assert_bulk(resets);
-
        if (!ret) {
                udelay(2);
                ret = reset_deassert_bulk(resets);

This shouldn't be part of the patch ?

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