[PATCH 1/1] fpga: dfl: Fix dead store

From: trix
Date: Sat Jun 06 2020 - 17:03:14 EST


From: Tom Rix <trix@xxxxxxxxxx>

Using clang's scan-build/view this issue was flagged in fpga-mgr.c

drivers/fpga/fpga-mgr.c:585:3: warning: Value stored to 'ret' is never read [deadcode.DeadStores]
ret = id;

A similar issue was flagged in fpga-bridge.

So remove the unused stores.

Signed-off-by: Tom Rix <trix@xxxxxxxxxx>
---
drivers/fpga/fpga-bridge.c | 6 ++----
drivers/fpga/fpga-mgr.c | 4 +---
2 files changed, 3 insertions(+), 7 deletions(-)

diff --git a/drivers/fpga/fpga-bridge.c b/drivers/fpga/fpga-bridge.c
index 4bab9028940a..2deccacc3aa7 100644
--- a/drivers/fpga/fpga-bridge.c
+++ b/drivers/fpga/fpga-bridge.c
@@ -328,7 +328,7 @@ struct fpga_bridge *fpga_bridge_create(struct device *dev, const char *name,
void *priv)
{
struct fpga_bridge *bridge;
- int id, ret = 0;
+ int id, ret;

if (!name || !strlen(name)) {
dev_err(dev, "Attempt to register with no name!\n");
@@ -340,10 +340,8 @@ struct fpga_bridge *fpga_bridge_create(struct device *dev, const char *name,
return NULL;

id = ida_simple_get(&fpga_bridge_ida, 0, 0, GFP_KERNEL);
- if (id < 0) {
- ret = id;
+ if (id < 0)
goto error_kfree;
- }

mutex_init(&bridge->mutex);
INIT_LIST_HEAD(&bridge->node);
diff --git a/drivers/fpga/fpga-mgr.c b/drivers/fpga/fpga-mgr.c
index e05104f5e40c..f38bab01432e 100644
--- a/drivers/fpga/fpga-mgr.c
+++ b/drivers/fpga/fpga-mgr.c
@@ -581,10 +581,8 @@ struct fpga_manager *fpga_mgr_create(struct device *dev, const char *name,
return NULL;

id = ida_simple_get(&fpga_mgr_ida, 0, 0, GFP_KERNEL);
- if (id < 0) {
- ret = id;
+ if (id < 0)
goto error_kfree;
- }

mutex_init(&mgr->ref_mutex);

--
2.26.0