dev_read_size() returns -EINVAL (-22) if the property "g-tx-fifo-size" does not exist. If that's the case, we now keep the default value of 0.

Signed-off-by: Wolfgang Grandegger wg@aries-embedded.de ---

Changes since v2: - fix compiler error using latest U-Boot version

Changes since v1: - removed unrelated changes (missing empty line) - improved commit message

drivers/usb/gadget/dwc2_udc_otg.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/gadget/dwc2_udc_otg.c b/drivers/usb/gadget/dwc2_udc_otg.c index 2748270ad6..77988f78ab 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) + plat->tx_fifo_sz_nb = ret / sizeof(u32); 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) {