UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

spi: fsl-spi: No need to check transfer length versus word size 

The verification is already do in the SPI core by function
__spi_validate(), not it to check it again in fsl_spi_bufs().

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Link: https://lore.kernel.org/r/9ace69a8085e22fafd9159e99edd7bbfae2f9940.1680371809.git.christophe.leroy@csgroup.eu
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Christophe Leroy 2023-04-01 19:59:50 +02:00 committed by Mark Brown
parent 99aebb3c1b
commit 4084c8ca12
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 2 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
drivers/spi/spi-fsl-spi.c
View File

@ -263,18 +263,10 @@ static int fsl_spi_bufs(struct spi_device *spi, struct spi_transfer *t,
if (t->bits_per_word)
bits_per_word = t->bits_per_word;
if (bits_per_word > 8) {
/* invalid length? */
if (len & 1)
return -EINVAL;
if (bits_per_word > 8)
len /= 2;
}
if (bits_per_word > 16) {
/* invalid length? */
if (len & 1)
return -EINVAL;
if (bits_per_word > 16)
len /= 2;
}
mpc8xxx_spi->tx = t->tx_buf;
mpc8xxx_spi->rx = t->rx_buf;