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spi: stm32-qspi: Fix stm32_qspi_transfer_one_message() error path

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The patch a557fca630: "spi: stm32_qspi: Add transfer_one_message()
spi callback" from Aug 23, 2022, leads to the following Smatch static
checker warning:

drivers/spi/spi-stm32-qspi.c:627 stm32_qspi_transfer_one_message()
error: uninitialized symbol 'ret'.Fix the following Smatch static checker warning:

Fixes: a557fca630 ("spi: stm32_qspi: Add transfer_one_message() spi callback")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Link: https://lore.kernel.org/r/20220826092031.1393430-1-patrice.chotard@foss.st.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Patrice Chotard 2022-08-26 11:20:31 +02:00 committed by Mark Brown
parent 3fe26121dc
commit 56ec456293
No known key found for this signature in database
GPG key ID: 24D68B725D5487D0
1 changed files with 4 additions and 2 deletions
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6
drivers/spi/spi-stm32-qspi.c
View file

@ -562,7 +562,7 @@ static int stm32_qspi_transfer_one_message(struct spi_controller *ctrl,
struct spi_transfer *transfer;
struct spi_device *spi = msg->spi;
struct spi_mem_op op;
int ret;
int ret = 0;
if (!spi->cs_gpiod)
return -EOPNOTSUPP;
@ -592,8 +592,10 @@ static int stm32_qspi_transfer_one_message(struct spi_controller *ctrl,
dummy_bytes = transfer->len;
/* if happens, means that message is not correctly built */
if (list_is_last(&transfer->transfer_list, &msg->transfers))
if (list_is_last(&transfer->transfer_list, &msg->transfers)) {
ret = -EINVAL;
goto end_of_transfer;
}
transfer = list_next_entry(transfer, transfer_list);
}