Move the check for spi->bits_per_word
before allocation, to avoid memory leak.
Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>
Signed-off-by: Bhuvanchandra DV <bhuvanchandra...@toradex.com>
---
drivers/spi/spi-fsl-dspi.c | 13 +++++++------
1 file changed, 7 insertions(+), 6 deletions(-)
diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers/spi/spi-fsl-dspi.c
index 4cda994..604b6d3 100644
--- a/drivers/spi/spi-fsl-dspi.c
+++ b/drivers/spi/spi-fsl-dspi.c
@@ -339,6 +339,13 @@ static int dspi_setup_transfer(struct spi_device *spi,
struct spi_transfer *t)
struct fsl_dspi *dspi = spi_master_get_devdata(spi->master);
unsigned char br = 0, pbr = 0, fmsz = 0;
+ if ((spi->bits_per_word >= 4) && (spi->bits_per_word <= 16)) {
+ fmsz = spi->bits_per_word - 1;
+ } else {
+ pr_err("Invalid wordsize\n");
+ return -ENODEV;
+ }
+
/* Only alloc on first setup */
chip = spi_get_ctldata(spi);
if (chip == NULL) {
@@ -350,12 +357,6 @@ static int dspi_setup_transfer(struct spi_device *spi,
struct spi_transfer *t)
chip->mcr_val = SPI_MCR_MASTER | SPI_MCR_PCSIS |
SPI_MCR_CLR_TXF | SPI_MCR_CLR_RXF;
- if ((spi->bits_per_word >= 4) && (spi->bits_per_word <= 16)) {
- fmsz = spi->bits_per_word - 1;
- } else {
- pr_err("Invalid wordsize\n");
- return -ENODEV;
- }
chip->void_write_data = 0;
--
2.2.2
--
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