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From: Axel Lin <axel.lin-8E1dMatC8ynQT0dZR+AlfA@public.gmane.org>
To: Mark Brown <broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: linux-spi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
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	[thread overview]
Message-ID: <1395201629.16346.9.camel@phoenix> (raw)
In-Reply-To: <1395201227.16346.1.camel@phoenix>

Signed-off-by: Axel Lin <axel.lin-8E1dMatC8ynQT0dZR+AlfA@public.gmane.org>
---
 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



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  parent reply	other threads:[~2014-03-19  4:00 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-03-19  3:53 [PATCH 1/7] spi: core: Validate Tx/Rx buffers for non-zero length transfer Axel Lin
2014-03-19  3:55 ` [PATCH 2/7] spi: atmel: Let spi core validate " Axel Lin
2014-03-19  4:01   ` Yang, Wenyou
2014-03-19  3:56 ` [PATCH 3/7] spi: omap-100k: " Axel Lin
2014-03-19  3:57 ` [PATCH 4/7] spi: omap2-mcspi: " Axel Lin
2014-03-19  3:58 ` [PATCH 5/7] spi: txx9: " Axel Lin
2014-03-19  3:59 ` [PATCH 6/7] spi: xcomm: " Axel Lin
2014-03-19  7:39   ` Lars-Peter Clausen
2014-03-19  4:00 ` Axel Lin [this message]
2014-03-19  8:06 ` [PATCH 1/7] spi: core: Validate " Geert Uytterhoeven
     [not found]   ` <CAMuHMdWCdp_SW5CNt50cSfG700JRU3tr=Pbyhv8nv-1Ve=XUNw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-03-19 15:43     ` Axel Lin
     [not found]       ` <CAFRkauCUUOQ0xxa-k5_TMKUA7jnnz1FPjXnGT4T10v7upyOy8Q-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-03-19 16:08         ` Mark Brown
2014-08-16 14:34     ` Mark Brown

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