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| author | Thomas Gleixner <tglx@linutronix.de> | 2015-06-05 22:25:01 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2015-06-05 22:25:01 +0200 |
| commit | 9f61f62544747db5d5c590bfae9dd19f1337e421 (patch) | |
| tree | 74772cccd14e7ab6d01a3452d4030cd7f8e58ccb /drivers/spi/spi.c | |
| parent | de8d1810fda5463ee60ba2937ca68e55a52bd9e7 (diff) | |
| parent | 086e8ddb567951513a5dace21a09297768aee14f (diff) | |
| download | linux-9f61f62544747db5d5c590bfae9dd19f1337e421.tar.bz2 | |
Merge branch 'linus' into irq/core
Get the urgent fixes from upstream to avoid conflicts.
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; |