Re: [PATCH] mac8390: fix pr_info() calls and change return code

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On Fri, 2010-04-16 at 14:21 +1000, Finn Thain wrote:
Signed-off-by: Finn Thain <fthain@xxxxxxxxxxxxxxxxxxx>

--- a/drivers/net/mac8390.c	2010-04-16 13:31:04.000000000 +1000
+++ b/drivers/net/mac8390.c	2010-04-16 14:02:29.000000000 +1000
@@ -554,7 +554,7 @@
 	case MAC8390_APPLE:
 		switch (mac8390_testio(dev->mem_start)) {
 		case ACCESS_UNKNOWN:
-			pr_info("Don't know how to access card memory!\n");
+			pr_err("Don't know how to access card memory!\n");
 			return -ENODEV;
 			break;
 
@@ -643,8 +643,8 @@
 {
 	__ei_open(dev);
 	if (request_irq(dev->irq, __ei_interrupt, 0, "8390 Ethernet", dev)) {
-		pr_info("%s: unable to get IRQ %d.\n", dev->name, dev->irq);
-		return -EAGAIN;
+		pr_err("%s: unable to get IRQ %d.\n", dev->name, dev->irq);
+		return -EBUSY;

You should document the reason for the
return code change in the changelog.
Why is it better to use -EBUSY?

 	}
 	return 0;
 }
@@ -660,7 +660,7 @@
 {
 	ei_status.txing = 0;
 	if (ei_debug > 1)
-		pr_info("reset not supported\n");
+		printk(KERN_DEBUG "reset not supported\n");

It'd be better to prefix this with the driver name
or use something like netdev_dbg with #define DEBUG
otherwise it's "huh? what device emits this message?"
when reading the logs.

Something like:
	printk(KERN_DEBUG pr_fmt("reset not supported\n"));
or
#define DEBUG
	netdev_dbg(dev, "reset not supported\n");
or
#define DEBUG
	pr_debug("reset not supported\n");

 	if (ei_debug > 1)
-		pr_cont("reset complete\n");
+		printk(KERN_CONT "reset complete\n");

unnecessary conversion.


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