diff options
| author | Mark Brown <broonie@kernel.org> | 2019-05-02 11:20:26 +0900 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2019-05-02 11:20:26 +0900 |
| commit | 58b860ed4a77d9cb17b78e663a0341b79a12e240 (patch) | |
| tree | a82d81a9075394e7dc8b46fe2732270e24390a7a /drivers/spi/spi.c | |
| parent | 37624b58542fb9f2d9a70e6ea006ef8a5f66c30b (diff) | |
| parent | 7e95b16625a3659a75c0ba4d5b0802324d16be13 (diff) | |
Merge branch 'spi-5.1' into spi-linus
Diffstat (limited to 'drivers/spi/spi.c')
| -rw-r--r-- | drivers/spi/spi.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index 93986f879b09..7b6494bd8a9b 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -1039,6 +1039,8 @@ static int spi_map_msg(struct spi_controller *ctlr, struct spi_message *msg) if (max_tx || max_rx) { list_for_each_entry(xfer, &msg->transfers, transfer_list) { + if (!xfer->len) + continue; if (!xfer->tx_buf) xfer->tx_buf = ctlr->dummy_tx; if (!xfer->rx_buf) @@ -2195,6 +2197,8 @@ static int spi_get_gpio_descs(struct spi_controller *ctlr) */ cs[i] = devm_gpiod_get_index_optional(dev, "cs", i, GPIOD_OUT_LOW); + if (IS_ERR(cs[i])) + return PTR_ERR(cs[i]); if (cs[i]) { /* |