Re: [PATCH] MMC host class

[Pierre Ossman <drzeus-list@drzeus.cx>]

Russell King wrote:

>
>I still don't like the needless duplication.  How about doing it this
>way (see the attached patch.)
>
>Note: I also intend to move MMC over to using an IDR for the host
>numbers, which is why we need to setup the name at registration
>time, not allocation time.
>
>  
>

This patch should cover the edge case of allocating but not registering
a host.

Rgds
Pierre

diff -uNp linux-2.6.13-rc6/drivers/mmc.orig/mmc.c linux-2.6.13-rc6/drivers/mmc/mmc.c
--- linux-2.6.13-rc6/drivers/mmc.orig/mmc.c	2005-08-08 13:29:53.000000000 +0200
+++ linux-2.6.13-rc6/drivers/mmc/mmc.c	2005-08-08 13:36:08.000000000 +0200
@@ -874,7 +874,11 @@ EXPORT_SYMBOL(mmc_remove_host);
 void mmc_free_host(struct mmc_host *host)
 {
 	flush_scheduled_work();
-	mmc_free_host_sysfs(host);
+
+	if (host->class_dev.class != NULL)
+		mmc_free_host_sysfs(host);
+	else
+		kfree(host);
 }
 
 EXPORT_SYMBOL(mmc_free_host);