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Update core.c
1:The control flow was simplified by using else if statements instead of goto structure. 2:Error conditions are handled more clearly. 3:The device_unlock call at the end of the function is guaranteed in all cases.
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@ -40,25 +40,17 @@ int nfc_fw_download(struct nfc_dev *dev, const char *firmware_name)
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if (dev->shutting_down) {
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rc = -ENODEV;
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goto error;
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}
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if (dev->dev_up) {
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}else if (dev->dev_up) {
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rc = -EBUSY;
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goto error;
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}
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if (!dev->ops->fw_download) {
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}else if (!dev->ops->fw_download) {
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rc = -EOPNOTSUPP;
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goto error;
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}
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}else{
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dev->fw_download_in_progress = true;
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rc = dev->ops->fw_download(dev, firmware_name);
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if (rc)
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dev->fw_download_in_progress = false;
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}
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error:
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device_unlock(&dev->dev);
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return rc;
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}
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