linux-kernel - [PATCH 0/1] Fix NULL pointer dereference

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Message-Id: <1428591822-24279-1-git-send-email-per.nilsson@xelmo.com>
Date:	Thu,  9 Apr 2015 17:03:41 +0200
From:	Pelle Nilsson <per.nilsson@...mo.com>
To:	broonie@...nel.org
Cc:	linux-spi@...r.kernel.org, linux-kernel@...r.kernel.org,
	nios2-dev@...ts.rocketboards.org
Subject: [PATCH 0/1] Fix NULL pointer dereference

As I reported earlier, spi-altera driver is broken and causes a kernel
panic due to a NULL pointer dereference during first SPI
transaction. On a closer look, it turned out that the setup_transfer()
bitbang callback is mandatory when the txrx_bufs() callback is
present. It was therefore an error to remove it in commit
30af9b558a56. This patch simply adds back an empty implementation of
the callback.

Pelle Nilsson (1):
  spi: altera: Add empty implementation of setup_transfer callback

 drivers/spi/spi-altera.c | 6 ++++++
 1 file changed, 6 insertions(+)

-- 
1.9.1

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