patch "staging: comedi: das6402: Fix endian problem for AI command data" added to staging-linus

This is a note to let you know that I've just added the patch titled

staging: comedi: das6402: 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 b8c94370d1b3b29e7356e43ddfe0727f79a9b78f Mon Sep 17 00:00:00 2001
From: Ian Abbott <[email protected]>
Date: Tue, 23 Feb 2021 14:30:45 +0000
Subject: staging: comedi: das6402: 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/das6402.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

index 04e224f8b779..96f4107b8054 100644
@@ -186,7 +186,7 @@ static irqreturn_t das6402_interrupt(int irq, void *d)
 	if (status & DAS6402_STATUS_FFULL) {
 		async->events |= COMEDI_CB_OVERFLOW;
 	} else if (status & DAS6402_STATUS_FFNE) {
-		unsigned int val;
+		unsigned short val;
 
 		val = das6402_ai_read_sample(dev, s);
 		comedi_buf_write_samples(s, &val, 1);

2.30.1