From: Hank Janssen <hjanssen@microsoft.com>
Date: Tue, 14 Dec 2010 00:23:36 +0000 (-0800)
Subject: Staging: hv: Use only one txf buffer per channel and kmalloc/GFP_KERNEL on initialize
X-Git-Tag: v2.6.38-rc1~423^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=45241e50e3e741ee2a148693888b48e90e806de9;p=pandora-kernel.git

Staging: hv: Use only one txf buffer per channel and kmalloc/GFP_KERNEL on initialize

Correct issue with not checking kmalloc return value.
This fix now only uses one receive buffer for all hv_utils
channels, and will do only one kmalloc on init and will return
with a -ENOMEM if kmalloc fails on initialize.

And properly clean up memory on failure.

Thanks to Evgeniy Polyakov <zbr@ioremap.net> for pointing this out.
And thanks to Jesper Juhl <jj@chaosbits.net> and Ky Srinivasan
<ksrinivasan@novell.com> for suggesting a better implementation of
my original patch.

Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Hank Janssen <hjanssen@microsoft.com>
Reviewed-by: Jesper Juhl <jj@chaosbits.net>
Cc: Evgeniy Polyakov <zbr@ioremap.net>
Cc: Jesper Juhl <jj@chaosbits.net>
Cc: Ky Srinivasan <ksrinivasan@novell.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

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