patch "staging: comedi: das800: Fix endian problem for AI command data" added to staging-linus
Subsystems (2)
This is a note to let you know that I've just added the patch titled
staging: comedi: das800: Fix endian problem for AI command data
to my staging git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git
in the staging-linus branch.
The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.)
The patch will hopefully also be merged in Linus's tree for the next -rc kernel release.
If you have any questions about this process, please let me know.
From 4ed84e4c429fbe8453f88276cc48caecd97127de Mon Sep 17 00:00:00 2001
From: Ian Abbott <[email protected]>
Date: Tue, 23 Feb 2021 14:30:46 +0000
Subject: staging: comedi: das800: Fix endian problem for AI command data
The analog input subdevice supports Comedi asynchronous commands that use Comedi's 16-bit sample format. However, the call to comedi_buf_write_samples() is passing the address of a 32-bit integer variable. On bigendian machines, this will copy 2 bytes from the wrong end of the 32-bit value. Fix it by changing the type of the variable holding the sample value to unsigned short.
--- drivers/staging/comedi/drivers/das800.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
drivers/staging/comedi/drivers/das800.c +1 -1
@@ -427,7 +427,7 @@ static irqreturn_t das800_interrupt(int irq, void *d)struct comedi_cmd *cmd;unsigned long irq_flags;unsigned int status; -unsigned int val; +unsigned short val;bool fifo_empty;bool fifo_overflow;int i;
Signature · 1 line
2.30.1