libpayload/drivers/usb: Fix broken retry counter
Exit on first sucessful CONTROL transfer instead of doing GET_DESCRIPTOR_TRIES iterations. Tested on qemu using: qemu-system-x86_64 -bios build/coreboot.rom -M pc -m 2048 -usb \ -device usb-ehci,id=ehci -device usb-mouse -device usb-audio,bus=usb-bus.0 \ -device usb-bt-dongle,bus=usb-bus.0 -device usb-kbd Change-Id: I7c881c08d94636a43223338e46c876b5f3e27d47 Signed-off-by: Patrick Rudolph <siro@das-labor.org> Reviewed-on: https://review.coreboot.org/23688 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org>
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@ -173,10 +173,10 @@ get_descriptor(usbdev_t *dev, int rtype, int desc_type, int desc_idx,
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ret = dev->controller->control(dev, IN,
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sizeof(dr), &dr, len, data);
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if (ret)
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udelay(10);
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else
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return 0;
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if (ret == len)
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break;
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udelay(10);
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}
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return ret;
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}
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