From 8ab4fe7e13989ef5b11bd96f1ed6763eabb1d17d Mon Sep 17 00:00:00 2001 From: Ian Abbott Date: Tue, 6 May 2014 13:12:13 +0100 Subject: [PATCH] staging: comedi: pass subdevice to __comedi_buf_write_alloc() Local function `__comedi_buf_write_alloc()` is called by `comedi_buf_write_alloc()` and `comedi_buf_put()`. It currently takes a pointer to a `struct comedi_async`. Change it to take a pointer to a `struct comedi_subdevice` and use the `async` member for consistency with other comedi buffer handling functions. Signed-off-by: Ian Abbott Reviewed-by: H Hartley Sweeten Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/comedi_buf.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/staging/comedi/comedi_buf.c b/drivers/staging/comedi/comedi_buf.c index b5e329e1f623..5be91cd88cc3 100644 --- a/drivers/staging/comedi/comedi_buf.c +++ b/drivers/staging/comedi/comedi_buf.c @@ -250,10 +250,11 @@ static unsigned int comedi_buf_write_n_available(struct comedi_async *async) return free_end - async->buf_write_alloc_count; } -static unsigned int __comedi_buf_write_alloc(struct comedi_async *async, +static unsigned int __comedi_buf_write_alloc(struct comedi_subdevice *s, unsigned int nbytes, int strict) { + struct comedi_async *async = s->async; unsigned int available = comedi_buf_write_n_available(async); if (nbytes > available) @@ -274,7 +275,7 @@ static unsigned int __comedi_buf_write_alloc(struct comedi_async *async, unsigned int comedi_buf_write_alloc(struct comedi_subdevice *s, unsigned int nbytes) { - return __comedi_buf_write_alloc(s->async, nbytes, 0); + return __comedi_buf_write_alloc(s, nbytes, 0); } EXPORT_SYMBOL_GPL(comedi_buf_write_alloc); @@ -427,7 +428,7 @@ EXPORT_SYMBOL_GPL(comedi_buf_read_free); int comedi_buf_put(struct comedi_subdevice *s, unsigned short x) { struct comedi_async *async = s->async; - unsigned int n = __comedi_buf_write_alloc(async, sizeof(short), 1); + unsigned int n = __comedi_buf_write_alloc(s, sizeof(short), 1); if (n < sizeof(short)) { async->events |= COMEDI_CB_ERROR; -- 2.34.1