diff options
| author | Zhang Rui <rui.zhang@intel.com> | 2015-06-11 12:52:14 +0800 |
|---|---|---|
| committer | Zhang Rui <rui.zhang@intel.com> | 2015-06-11 12:52:14 +0800 |
| commit | 111b23cf895b5cbcdc1b2c6580be1bb78a577d05 (patch) | |
| tree | 89b840115ccd753216ba0b26e587e52699b99310 /drivers/spi/spi.c | |
| parent | 6a6bcf08e5d1834447655a762dfaf552b675cc54 (diff) | |
| parent | 53daf9383f34d7bf61358a37449fb4d59fbdafc2 (diff) | |
Merge branches 'release' and 'thermal-soc' of .git into next
Diffstat (limited to 'drivers/spi/spi.c')
| -rw-r--r-- | drivers/spi/spi.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index d5d7d2235163..50910d85df5a 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -583,6 +583,15 @@ static int spi_unmap_msg(struct spi_master *master, struct spi_message *msg) rx_dev = master->dma_rx->device->dev; list_for_each_entry(xfer, &msg->transfers, transfer_list) { + /* + * Restore the original value of tx_buf or rx_buf if they are + * NULL. + */ + if (xfer->tx_buf == master->dummy_tx) + xfer->tx_buf = NULL; + if (xfer->rx_buf == master->dummy_rx) + xfer->rx_buf = NULL; + if (!master->can_dma(master, msg->spi, xfer)) continue; |