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Message-Id: <1380066475-2119-1-git-send-email-james.d.ralston@intel.com> Date: Tue, 24 Sep 2013 16:47:55 -0700 From: James Ralston <james.d.ralston@...el.com> To: Wolfram Sang <wsa@...-dreams.de>, Neil Horman <nhorman@...driver.com> Cc: Seth Heasley <seth.heasley@...el.com>, James Ralston <james.d.ralston@...el.com>, linux-i2c@...r.kernel.org, linux-kernel@...r.kernel.org Subject: [PATCH 1/1] i2c-ismt: add Initialize DMA buffer code ismt_access() This patch adds code to Initialize the DMA buffer to compensate for possible hardware data corruption. Signed-off-by: James Ralston <james.d.ralston@...el.com> --- drivers/i2c/busses/i2c-ismt.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git a/drivers/i2c/busses/i2c-ismt.c b/drivers/i2c/busses/i2c-ismt.c index 8ed79a0..d3f30ea 100644 --- a/drivers/i2c/busses/i2c-ismt.c +++ b/drivers/i2c/busses/i2c-ismt.c @@ -393,6 +393,9 @@ static int ismt_access(struct i2c_adapter *adap, u16 addr, desc = &priv->hw[priv->head]; + /* Initialize the DMA buffer */ + memset(priv->dma_buffer, 0, (I2C_SMBUS_BLOCK_MAX+1)); + /* Initialize the descriptor */ memset(desc, 0, sizeof(struct ismt_desc)); desc->tgtaddr_rw = ISMT_DESC_ADDR_RW(addr, read_write); -- 1.7.7.6 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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