linux-kernel - [PATCH][next] media: atomisp: remove redundant assignments to variables

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Date: Tue, 19 Dec 2023 14:39:29 +0000
From: Colin Ian King <colin.i.king@...il.com>
To: Hans de Goede <hdegoede@...hat.com>,
	Mauro Carvalho Chehab <mchehab@...nel.org>,
	Sakari Ailus <sakari.ailus@...ux.intel.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-media@...r.kernel.org,
	linux-staging@...ts.linux.dev
Cc: kernel-janitors@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH][next] media: atomisp: remove redundant assignments to variables

There are several variables that are being initialized with values
that are never read, the assignment are redundant and can be removed.
Cleans up cppcheck unreadVariable warnings.

Signed-off-by: Colin Ian King <colin.i.king@...il.com>
---
 .../atomisp/pci/base/circbuf/src/circbuf.c     |  2 +-
 .../pci/runtime/pipeline/src/pipeline.c        |  4 +---
 .../atomisp/pci/runtime/queue/src/queue.c      | 18 +++++++++---------
 3 files changed, 11 insertions(+), 13 deletions(-)

diff --git a/drivers/staging/media/atomisp/pci/base/circbuf/src/circbuf.c b/drivers/staging/media/atomisp/pci/base/circbuf/src/circbuf.c
index d9f7c143794d..06f039236abc 100644
--- a/drivers/staging/media/atomisp/pci/base/circbuf/src/circbuf.c
+++ b/drivers/staging/media/atomisp/pci/base/circbuf/src/circbuf.c
@@ -207,7 +207,7 @@ bool ia_css_circbuf_increase_size(
 {
 	u8 curr_size;
 	u8 curr_end;
-	unsigned int i = 0;
+	unsigned int i;
 
 	if (!cb || sz_delta == 0)
 		return false;
diff --git a/drivers/staging/media/atomisp/pci/runtime/pipeline/src/pipeline.c b/drivers/staging/media/atomisp/pci/runtime/pipeline/src/pipeline.c
index 3d8741e7d5ca..966cb47b95d9 100644
--- a/drivers/staging/media/atomisp/pci/runtime/pipeline/src/pipeline.c
+++ b/drivers/staging/media/atomisp/pci/runtime/pipeline/src/pipeline.c
@@ -693,7 +691,7 @@ static void pipeline_init_defaults(
 static void ia_css_pipeline_set_zoom_stage(struct ia_css_pipeline *pipeline)
 {
 	struct ia_css_pipeline_stage *stage = NULL;
-	int err = 0;
+	int err;
 
 	assert(pipeline);
 	if (pipeline->pipe_id == IA_CSS_PIPE_ID_PREVIEW) {
diff --git a/drivers/staging/media/atomisp/pci/runtime/queue/src/queue.c b/drivers/staging/media/atomisp/pci/runtime/queue/src/queue.c
index 2f1c2df59f71..c4d4062206a2 100644
--- a/drivers/staging/media/atomisp/pci/runtime/queue/src/queue.c
+++ b/drivers/staging/media/atomisp/pci/runtime/queue/src/queue.c
@@ -81,7 +81,7 @@ int ia_css_queue_uninit(ia_css_queue_t *qhandle)
 
 int ia_css_queue_enqueue(ia_css_queue_t *qhandle, uint32_t item)
 {
-	int error = 0;
+	int error;
 
 	if (!qhandle)
 		return -EINVAL;
@@ -138,7 +138,7 @@ int ia_css_queue_enqueue(ia_css_queue_t *qhandle, uint32_t item)
 
 int ia_css_queue_dequeue(ia_css_queue_t *qhandle, uint32_t *item)
 {
-	int error = 0;
+	int error;
 
 	if (!qhandle || NULL == item)
 		return -EINVAL;
@@ -193,7 +193,7 @@ int ia_css_queue_dequeue(ia_css_queue_t *qhandle, uint32_t *item)
 
 int ia_css_queue_is_full(ia_css_queue_t *qhandle, bool *is_full)
 {
-	int error = 0;
+	int error;
 
 	if ((!qhandle) || (!is_full))
 		return -EINVAL;
@@ -225,7 +225,7 @@ int ia_css_queue_is_full(ia_css_queue_t *qhandle, bool *is_full)
 
 int ia_css_queue_get_free_space(ia_css_queue_t *qhandle, uint32_t *size)
 {
-	int error = 0;
+	int error;
 
 	if ((!qhandle) || (!size))
 		return -EINVAL;
@@ -257,7 +257,7 @@ int ia_css_queue_get_free_space(ia_css_queue_t *qhandle, uint32_t *size)
 
 int ia_css_queue_get_used_space(ia_css_queue_t *qhandle, uint32_t *size)
 {
-	int error = 0;
+	int error;
 
 	if ((!qhandle) || (!size))
 		return -EINVAL;
@@ -289,8 +289,8 @@ int ia_css_queue_get_used_space(ia_css_queue_t *qhandle, uint32_t *size)
 
 int ia_css_queue_peek(ia_css_queue_t *qhandle, u32 offset, uint32_t *element)
 {
-	u32 num_elems = 0;
-	int error = 0;
+	u32 num_elems;
+	int error;
 
 	if ((!qhandle) || (!element))
 		return -EINVAL;
@@ -338,7 +338,7 @@ int ia_css_queue_peek(ia_css_queue_t *qhandle, u32 offset, uint32_t *element)
 
 int ia_css_queue_is_empty(ia_css_queue_t *qhandle, bool *is_empty)
 {
-	int error = 0;
+	int error;
 
 	if ((!qhandle) || (!is_empty))
 		return -EINVAL;
@@ -370,7 +370,7 @@ int ia_css_queue_is_empty(ia_css_queue_t *qhandle, bool *is_empty)
 
 int ia_css_queue_get_size(ia_css_queue_t *qhandle, uint32_t *size)
 {
-	int error = 0;
+	int error;
 
 	if ((!qhandle) || (!size))
 		return -EINVAL;
-- 
2.39.2