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| author | Ian Abbott | 2015-10-12 18:21:23 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2015-10-13 19:29:48 +0200 |
| commit | 76e8e7d4ffb3300217b62637183282a5225d7394 (patch) | |
| tree | 456554788fe1fdec14a890a0df152877cf0db5c1 /drivers/staging/comedi/comedi_fops.c | |
| parent | staging: comedi: do extra checks for becoming non-busy for "read" (diff) | |
| download | kernel-qcow2-linux-76e8e7d4ffb3300217b62637183282a5225d7394.tar.gz kernel-qcow2-linux-76e8e7d4ffb3300217b62637183282a5225d7394.tar.xz kernel-qcow2-linux-76e8e7d4ffb3300217b62637183282a5225d7394.zip | |
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 <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/comedi/comedi_fops.c')
| -rw-r--r-- | drivers/staging/comedi/comedi_fops.c | 4 |
1 files changed, 3 insertions, 1 deletions
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; |