From: David Brownell <david-b@pacbell.net>
Date: Sun, 8 Jan 2006 21:34:25 +0000 (-0800)
Subject: [PATCH] SPI core tweaks, bugfix
X-Git-Tag: v2.6.16-rc1~163^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0c868461fcb8413cb9f691d68e5b99b0fd3c0737;p=pandora-kernel.git

[PATCH] SPI core tweaks, bugfix

This includes various updates to the SPI core:

  - Fixes a driver model refcount bug in spi_unregister_master() paths.

  - The spi_master structures now have wrappers which help keep drivers
    from needing class-level get/put for device data or for refcounts.

  - Check for a few setup errors that would cause oopsing later.

  - Docs say more about memory management.  Highlights the use of DMA-safe
    i/o buffers, and zero-initializing spi_message and such metadata.

  - Provide a simple alloc/free for spi_message and its spi_transfer;
    this is only one of the possible memory management policies.

Nothing to break code that already works.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

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