From 0a6fd02c1c0fe4ae872dc24260d569583363f52c Mon Sep 17 00:00:00 2001 From: Ian Abbott Date: Wed, 16 Oct 2013 14:40:04 +0100 Subject: [PATCH] staging: comedi: use unsigned samples for comedi_buf_put()/get() Sample values in comedi are generally represented as unsigned values. `comedi_buf_put()` and `comedi_buf_get()` use a `short` to hold the 16-bit data value being transferred to or from the comedi buffer. Change them to use `unsigned short` for consistency. Signed-off-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/comedi_buf.c | 8 ++++---- drivers/staging/comedi/comedidev.h | 4 ++-- 2 files changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/staging/comedi/comedi_buf.c b/drivers/staging/comedi/comedi_buf.c index 94b2385f..4e26bd7 100644 --- a/drivers/staging/comedi/comedi_buf.c +++ b/drivers/staging/comedi/comedi_buf.c @@ -344,7 +344,7 @@ unsigned int comedi_buf_read_free(struct comedi_async *async, } EXPORT_SYMBOL_GPL(comedi_buf_read_free); -int comedi_buf_put(struct comedi_async *async, short x) +int comedi_buf_put(struct comedi_async *async, unsigned short x) { unsigned int n = __comedi_buf_write_alloc(async, sizeof(short), 1); @@ -352,20 +352,20 @@ int comedi_buf_put(struct comedi_async *async, short x) async->events |= COMEDI_CB_ERROR; return 0; } - *(short *)(async->prealloc_buf + async->buf_write_ptr) = x; + *(unsigned short *)(async->prealloc_buf + async->buf_write_ptr) = x; comedi_buf_write_free(async, sizeof(short)); return 1; } EXPORT_SYMBOL_GPL(comedi_buf_put); -int comedi_buf_get(struct comedi_async *async, short *x) +int comedi_buf_get(struct comedi_async *async, unsigned short *x) { unsigned int n = comedi_buf_read_n_available(async); if (n < sizeof(short)) return 0; comedi_buf_read_alloc(async, sizeof(short)); - *x = *(short *)(async->prealloc_buf + async->buf_read_ptr); + *x = *(unsigned short *)(async->prealloc_buf + async->buf_read_ptr); comedi_buf_read_free(async, sizeof(short)); return 1; } diff --git a/drivers/staging/comedi/comedidev.h b/drivers/staging/comedi/comedidev.h index 9a854b1..143be80 100644 --- a/drivers/staging/comedi/comedidev.h +++ b/drivers/staging/comedi/comedidev.h @@ -346,8 +346,8 @@ unsigned int comedi_buf_read_n_available(struct comedi_async *); unsigned int comedi_buf_read_alloc(struct comedi_async *, unsigned int); unsigned int comedi_buf_read_free(struct comedi_async *, unsigned int); -int comedi_buf_put(struct comedi_async *, short); -int comedi_buf_get(struct comedi_async *, short *); +int comedi_buf_put(struct comedi_async *, unsigned short); +int comedi_buf_get(struct comedi_async *, unsigned short *); void comedi_buf_memcpy_to(struct comedi_async *async, unsigned int offset, const void *source, unsigned int num_bytes); -- 2.7.4