Skip to content

[bsp][dm365] reject zero max_hz in SPI setup to avoid divide-by-zero #11957

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
r3wretrhy wants to merge 1 commit into
base: master
Choose a base branch
from
+6 −0
Open

[bsp][dm365] reject zero max_hz in SPI setup to avoid divide-by-zero #11957

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
6 changes: 6 additions & 0 deletions bsp/dm365/drivers/spi-davinci.c
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -328,6 +328,12 @@ static int davinci_spi_setup_transfer(struct rt_spi_device *spi,
} else
return -RT_ERROR;

/* the prescaler divides by the requested rate */
if (hz == 0)
{
return -RT_EINVAL;
}

/* Set up SPIFMTn register, unique to this chipselect. */

prescale = davinci_spi_get_prescale(dspi, hz);
Expand Down
Loading