diff options
Diffstat (limited to 'libhw_cr/rp2040_hwspi.c')
| -rw-r--r-- | libhw_cr/rp2040_hwspi.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/libhw_cr/rp2040_hwspi.c b/libhw_cr/rp2040_hwspi.c index c0b4fa4..3bf3f84 100644 --- a/libhw_cr/rp2040_hwspi.c +++ b/libhw_cr/rp2040_hwspi.c @@ -158,12 +158,14 @@ static void rp2040_hwspi_readwritev(struct rp2040_hwspi *self, const struct dupl uint8_t bogus_rx_dst; + size_t count = 0; int pruned_iovcnt = 0; - for (int i = 0; i < iovcnt; i++) + for (int i = 0; i < iovcnt; i++) { + count += iov[i].iov_len; if (iov[i].iov_len) pruned_iovcnt++; - if (!pruned_iovcnt) - return; + } + assert(count); /* It doesn't *really* matter which aliases we choose: * @@ -230,8 +232,8 @@ static void rp2040_hwspi_readwritev(struct rp2040_hwspi *self, const struct dupl }; j++; } - tx_data_blocks[pruned_iovcnt] = (typeof(tx_data_blocks[0])){0}; - rx_data_blocks[pruned_iovcnt] = (typeof(rx_data_blocks[0])){0}; + tx_data_blocks[pruned_iovcnt] = (typeof(tx_data_blocks[0])){}; + rx_data_blocks[pruned_iovcnt] = (typeof(rx_data_blocks[0])){}; /* If ctrl isn't the trigger then we need to make sure that * DMA_CTRL_IRQ_QUIET isn't cleared before the trigger * happens. */ |