From mboxrd@z Thu Jan 1 00:00:00 1970 From: Axel Lin Subject: [PATCH 7/7] spi: bitbang: Let spi core validate Tx/Rx buffers for non-zero length transfer Date: Wed, 19 Mar 2014 12:00:29 +0800 Message-ID: <1395201629.16346.9.camel@phoenix> References: <1395201227.16346.1.camel@phoenix> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Cc: linux-spi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Mark Brown Return-path: In-Reply-To: <1395201227.16346.1.camel@phoenix> Sender: linux-spi-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-ID: Signed-off-by: Axel Lin --- drivers/spi/spi-bitbang.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/drivers/spi/spi-bitbang.c b/drivers/spi/spi-bitbang.c index 3bfdb85..4beabea 100644 --- a/drivers/spi/spi-bitbang.c +++ b/drivers/spi/spi-bitbang.c @@ -317,10 +317,6 @@ static int spi_bitbang_transfer_one(struct spi_master *master, ndelay(nsecs); } cs_change = t->cs_change; - if (!t->tx_buf && !t->rx_buf && t->len) { - status = -EINVAL; - break; - } /* transfer data. the lower level code handles any * new dma mappings it needs. our caller always gave -- 1.8.3.2 -- To unsubscribe from this list: send the line "unsubscribe linux-spi" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html