diff options
| author | Paul Mundt <lethal@linux-sh.org> | 2008-10-20 11:17:52 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2008-10-20 11:17:52 +0900 |
| commit | 4cb40f795af36b3deb743f6ccf6c3fd542c61c8d (patch) | |
| tree | db3d7519932549bf528f5b8e4cb8350356cd544d /drivers/spi/spi.c | |
| parent | 79ed2a9216dd3cc35c4f2c5dbaddadb195af83ac (diff) | |
| parent | 0cfd81031a26717fe14380d18275f8e217571615 (diff) | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
Documentation/kernel-parameters.txt
arch/sh/include/asm/elf.h
Diffstat (limited to 'drivers/spi/spi.c')
| -rw-r--r-- | drivers/spi/spi.c | 24 |
1 files changed, 9 insertions, 15 deletions
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index 75e86865234c..3734dc9708e1 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -660,7 +660,7 @@ int spi_write_then_read(struct spi_device *spi, int status; struct spi_message message; - struct spi_transfer x[2]; + struct spi_transfer x; u8 *local_buf; /* Use preallocated DMA-safe buffer. We can't avoid copying here, @@ -671,15 +671,9 @@ int spi_write_then_read(struct spi_device *spi, return -EINVAL; spi_message_init(&message); - memset(x, 0, sizeof x); - if (n_tx) { - x[0].len = n_tx; - spi_message_add_tail(&x[0], &message); - } - if (n_rx) { - x[1].len = n_rx; - spi_message_add_tail(&x[1], &message); - } + memset(&x, 0, sizeof x); + x.len = n_tx + n_rx; + spi_message_add_tail(&x, &message); /* ... unless someone else is using the pre-allocated buffer */ if (!mutex_trylock(&lock)) { @@ -690,15 +684,15 @@ int spi_write_then_read(struct spi_device *spi, local_buf = buf; memcpy(local_buf, txbuf, n_tx); - x[0].tx_buf = local_buf; - x[1].rx_buf = local_buf + n_tx; + x.tx_buf = local_buf; + x.rx_buf = local_buf; /* do the i/o */ status = spi_sync(spi, &message); if (status == 0) - memcpy(rxbuf, x[1].rx_buf, n_rx); + memcpy(rxbuf, x.rx_buf + n_tx, n_rx); - if (x[0].tx_buf == buf) + if (x.tx_buf == buf) mutex_unlock(&lock); else kfree(local_buf); @@ -744,5 +738,5 @@ err0: * driver registration) _could_ be dynamically linked (modular) ... costs * include needing to have boardinfo data structures be much more public. */ -subsys_initcall(spi_init); +postcore_initcall(spi_init); |