write in 30M

hc

2024-02-20 ea08eeccae9297f7aabd2ef7f0c2517ac4549acc

 kernel/drivers/base/dd.c
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@@ -677,7 +677,12 @@
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 	calltime = ktime_get();
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 	ret = really_probe(dev, drv);
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 	rettime = ktime_get();
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-	pr_debug("probe of %s returned %d after %lld usecs\n",
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+	/*
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+	 * Don't change this to pr_debug() because that requires
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+	 * CONFIG_DYNAMIC_DEBUG and we want a simple 'initcall_debug' on the
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+	 * kernel commandline to print this all the time at the debug level.
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+	 */
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+	printk(KERN_DEBUG "probe of %s returned %d after %lld usecs\n",
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 		 dev_name(dev), ret, ktime_us_delta(rettime, calltime));
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 	return ret;
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 }
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@@ -1088,7 +1093,11 @@
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 		return 0;
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 	} else if (ret < 0) {
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 		dev_dbg(dev, "Bus failed to match device: %d\n", ret);
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-		return ret;
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+		/*
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+		 * Driver could not match with device, but may match with
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+		 * another device on the bus.
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+		 */
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+		return 0;
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 	} /* ret > 0 means positive match */
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 	if (driver_allows_async_probing(drv)) {