[PATCH] staging: vme_user: Change slot number type from int to u32

[Riyan Dhiman <riyandhiman14@gmail.com>]

Change the type used for VME slot numbers from int to u32 throughout vme
driver. This modification more accurately represents the nature of slot
numbers which are always non-negative.

The changes include
- Updating variable declarations
- Modifying function signatures and return types

This change imporves type safety, prevents potential issues with sign conversion.

Signed-off-by: Riyan Dhiman <riyandhiman14@gmail.com>
---
 drivers/staging/vme_user/vme.c        | 2 +-
 drivers/staging/vme_user/vme.h        | 4 ++--
 drivers/staging/vme_user/vme_bridge.h | 2 +-
 drivers/staging/vme_user/vme_fake.c   | 2 +-
 drivers/staging/vme_user/vme_tsi148.c | 4 ++--
 drivers/staging/vme_user/vme_user.c   | 2 +-
 6 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/staging/vme_user/vme.c b/drivers/staging/vme_user/vme.c
index 42304c9f83a2..aa3be2d7248d 100644
--- a/drivers/staging/vme_user/vme.c
+++ b/drivers/staging/vme_user/vme.c
@@ -1696,7 +1696,7 @@ EXPORT_SYMBOL(vme_lm_free);
  *         or the function is not supported. Hardware specific errors may also
  *         be returned.
  */
-int vme_slot_num(struct vme_dev *vdev)
+u32 vme_slot_num(struct vme_dev *vdev)
 {
 	struct vme_bridge *bridge;
 
diff --git a/drivers/staging/vme_user/vme.h b/drivers/staging/vme_user/vme.h
index 7753e736f9fd..66388767b6c7 100644
--- a/drivers/staging/vme_user/vme.h
+++ b/drivers/staging/vme_user/vme.h
@@ -102,7 +102,7 @@ extern const struct bus_type vme_bus_type;
  * @bridge_list: List of devices (per bridge)
  */
 struct vme_dev {
-	int num;
+	u32 num;
 	struct vme_bridge *bridge;
 	struct device dev;
 	struct list_head drv_list;
@@ -179,7 +179,7 @@ int vme_lm_attach(struct vme_resource *, int, void (*callback)(void *), void *);
 int vme_lm_detach(struct vme_resource *, int);
 void vme_lm_free(struct vme_resource *);
 
-int vme_slot_num(struct vme_dev *);
+u32 vme_slot_num(struct vme_dev *);
 int vme_bus_num(struct vme_dev *);
 
 int vme_register_driver(struct vme_driver *, unsigned int);
diff --git a/drivers/staging/vme_user/vme_bridge.h b/drivers/staging/vme_user/vme_bridge.h
index 9bdc41bb6602..6778447eadfb 100644
--- a/drivers/staging/vme_user/vme_bridge.h
+++ b/drivers/staging/vme_user/vme_bridge.h
@@ -160,7 +160,7 @@ struct vme_bridge {
 	int (*lm_detach)(struct vme_lm_resource *, int);
 
 	/* CR/CSR space functions */
-	int (*slot_get)(struct vme_bridge *);
+	u32 (*slot_get)(struct vme_bridge *);
 
 	/* Bridge parent interface */
 	void *(*alloc_consistent)(struct device *dev, size_t size, dma_addr_t *dma);
diff --git a/drivers/staging/vme_user/vme_fake.c b/drivers/staging/vme_user/vme_fake.c
index 7f84d1c86f29..81601bfa4155 100644
--- a/drivers/staging/vme_user/vme_fake.c
+++ b/drivers/staging/vme_user/vme_fake.c
@@ -987,7 +987,7 @@ static int fake_lm_detach(struct vme_lm_resource *lm, int monitor)
 /*
  * Determine Geographical Addressing
  */
-static int fake_slot_get(struct vme_bridge *fake_bridge)
+static u32 fake_slot_get(struct vme_bridge *fake_bridge)
 {
 	return geoid;
 }
diff --git a/drivers/staging/vme_user/vme_tsi148.c b/drivers/staging/vme_user/vme_tsi148.c
index d81be8e4ceba..65237fb12466 100644
--- a/drivers/staging/vme_user/vme_tsi148.c
+++ b/drivers/staging/vme_user/vme_tsi148.c
@@ -2109,7 +2109,7 @@ static int tsi148_lm_detach(struct vme_lm_resource *lm, int monitor)
 /*
  * Determine Geographical Addressing
  */
-static int tsi148_slot_get(struct vme_bridge *tsi148_bridge)
+static u32 tsi148_slot_get(struct vme_bridge *tsi148_bridge)
 {
 	u32 slot = 0;
 	struct tsi148_driver *bridge;
@@ -2123,7 +2123,7 @@ static int tsi148_slot_get(struct vme_bridge *tsi148_bridge)
 		slot = geoid;
 	}
 
-	return (int)slot;
+	return slot;
 }
 
 static void *tsi148_alloc_consistent(struct device *parent, size_t size,
diff --git a/drivers/staging/vme_user/vme_user.c b/drivers/staging/vme_user/vme_user.c
index 5829a4141561..63f8efc19324 100644
--- a/drivers/staging/vme_user/vme_user.c
+++ b/drivers/staging/vme_user/vme_user.c
@@ -506,7 +506,7 @@ static int vme_user_match(struct vme_dev *vdev)
 	int i;
 
 	int cur_bus = vme_bus_num(vdev);
-	int cur_slot = vme_slot_num(vdev);
+	u32 cur_slot = vme_slot_num(vdev);
 
 	for (i = 0; i < bus_num; i++)
 		if ((cur_bus == bus[i]) && (cur_slot == vdev->num))
-- 
2.46.0