From 76e8e7d4ffb3300217b62637183282a5225d7394 Mon Sep 17 00:00:00 2001 From: Ian Abbott Date: Mon, 12 Oct 2015 17:21:23 +0100 Subject: [PATCH] staging: comedi: make some variables unsigned in comedi_read() In `comedi_read()`, the `n` and `m` variables are of type `int`. Change them to `unsigned int` as they are used to measure a positive number of bytes. The `count` variable is also of type `int` and holds the returned number of bytes. Change it to type `ssize_t` to match the function's return type. Signed-off-by: Ian Abbott Reviewed-by: H Hartley Sweeten Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/comedi_fops.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c index 49c46651ad23..92f571645f36 100644 --- a/drivers/staging/comedi/comedi_fops.c +++ b/drivers/staging/comedi/comedi_fops.c @@ -2450,7 +2450,9 @@ static ssize_t comedi_read(struct file *file, char __user *buf, size_t nbytes, { struct comedi_subdevice *s; struct comedi_async *async; - int n, m, count = 0, retval = 0; + unsigned int n, m; + ssize_t count = 0; + int retval = 0; DECLARE_WAITQUEUE(wait, current); struct comedi_file *cfp = file->private_data; struct comedi_device *dev = cfp->dev; -- 2.30.2