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spi: fix spi_write_then_read() comment

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Buffer needs not be dma-safe, not rx data length.

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jiri Pirko 2009-06-17 16:26:06 -07:00 committed by Linus Torvalds
parent 50e0a7bd02
commit 275704970c
1 changed files with 2 additions and 2 deletions
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4
drivers/spi/spi.c
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@ -700,8 +700,8 @@ static u8 *buf;
* @spi: device with which data will be exchanged
* @txbuf: data to be written (need not be dma-safe)
* @n_tx: size of txbuf, in bytes
* @rxbuf: buffer into which data will be read
* @n_rx: size of rxbuf, in bytes (need not be dma-safe)
* @rxbuf: buffer into which data will be read (need not be dma-safe)
* @n_rx: size of rxbuf, in bytes
* Context: can sleep
*
* This performs a half duplex MicroWire style transaction with the