Re: [PATCH v2] ide/macide: Convert Mac IDE driver to platform driver

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Hi Finn,

On 24/09/20 1:07 PM, Finn Thain wrote:
Looking further at the drivers using ide_host_register(), I see that
falconide.c is missing a set_drvdata() call, while tx4939ide.c calls
set_drvdata() after ide_host_register(). The latter example is not a bug.

The pattern I used, that is, calling set_drvdata() after ide_host_add(),
is actually more popular among IDE drivers than the pattern you suggested,
that is, set_drvdata() followed by ide_host_register(). Either way, I
don't see any bugs besides the one in falconide.c.

Regarding falconide.c, my inclination is to send a fix following the more
common pattern (among IDE drivers), as below. I guess that may prompt the
subsystem maintainers to make known their views on the style question.

Please do - that is clearly a bug. I must admit I never tried to boot my Falcon off a SCSI partition to test falconide module unload.

Cheers,

    Michael



diff --git a/drivers/ide/falconide.c b/drivers/ide/falconide.c
index dbeb2605e5f6e..607c44bc50f1b 100644
--- a/drivers/ide/falconide.c
+++ b/drivers/ide/falconide.c
@@ -166,6 +166,7 @@ static int __init falconide_init(struct platform_device *pdev)
  	if (rc)
  		goto err_free;
+ platform_set_drvdata(pdev, host);
  	return 0;
  err_free:
  	ide_host_free(host);
@@ -176,7 +177,7 @@ static int __init falconide_init(struct platform_device *pdev)
static int falconide_remove(struct platform_device *pdev)
  {
-	struct ide_host *host = dev_get_drvdata(&pdev->dev);
+	struct ide_host *host = platform_get_drvdata(pdev);
ide_host_remove(host);



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