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spi: tegra210-quad: Fix iterator outside loop 

[ Upstream commit 2449d43668 ]

Fix warn: iterator used outside loop: 'xfer'. 'xfer' variable contain
invalid value in few conditions. Complete transfer within DATA phase
in successful case and at the end for failed transfer.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Link:https://lore.kernel.org/all/202210191211.46FkzKmv-lkp@intel.com/
Fixes: 8777dd9dff ("spi: tegra210-quad: Fix combined sequence")

Signed-off-by: Krishna Yarlagadda <kyarlagadda@nvidia.com>
Link: https://lore.kernel.org/r/20230227200428.45832-1-kyarlagadda@nvidia.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Krishna Yarlagadda 2023-02-28 01:34:28 +05:30 committed by Greg Kroah-Hartman
parent d6e15f8de5
commit aa7dc954e8
1 changed files with 8 additions and 4 deletions
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12
drivers/spi/spi-tegra210-quad.c
View File

@ -1156,6 +1156,10 @@ static int tegra_qspi_combined_seq_xfer(struct tegra_qspi *tqspi,
ret = -EIO;
goto exit;
}
if (!xfer->cs_change) {
tegra_qspi_transfer_end(spi);
spi_transfer_delay_exec(xfer);
}
break;
default:
ret = -EINVAL;
@ -1164,14 +1168,14 @@ static int tegra_qspi_combined_seq_xfer(struct tegra_qspi *tqspi,
msg->actual_length += xfer->len;
transfer_phase++;
}
if (!xfer->cs_change) {
tegra_qspi_transfer_end(spi);
spi_transfer_delay_exec(xfer);
}
ret = 0;
exit:
msg->status = ret;
if (ret < 0) {
tegra_qspi_transfer_end(spi);
spi_transfer_delay_exec(xfer);
}
return ret;
}