can: c_can: use proper type for 'instance'

Commit 6439fbce1075 (can: c_can: fix error checking of priv->instance in
probe()) found the warning but applied a suboptimal solution. Since, both
pdev->id and of_alias_get_id() return integers, it makes sense to convert the
variable to an integer and avoid the cast.

Signed-off-by: Wolfram Sang <wsa@sang-engineering.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

2 files changed, 2 insertions, 2 deletions

diff --git a/drivers/net/can/c_can/c_can.h b/drivers/net/can/c_can/c_can.h
index e7de2b9f26bb..c56f1b1c11ca 100644
--- a/drivers/net/can/c_can/c_can.h
+++ b/drivers/net/can/c_can/c_can.h
@@ -183,7 +183,7 @@ struct c_can_priv {
         void *priv;             /* for board-specific data */
         enum c_can_dev_id type;
         u32 __iomem *raminit_ctrlreg;
-        unsigned int instance;
+        int instance;
         void (*raminit) (const struct c_can_priv *priv, bool enable);
         u32 comm_rcv_high;
         u32 rxmasked;
diff --git a/drivers/net/can/c_can/c_can_platform.c b/drivers/net/can/c_can/c_can_platform.c
index 806d92753427..1df0b322d1e4 100644
--- a/drivers/net/can/c_can/c_can_platform.c
+++ b/drivers/net/can/c_can/c_can_platform.c
@@ -222,7 +222,7 @@ static int c_can_plat_probe(struct platform_device *pdev)
 
                 res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
                 priv->raminit_ctrlreg = devm_ioremap_resource(&pdev->dev, res);
-                if (IS_ERR(priv->raminit_ctrlreg) || (int)priv->instance < 0)
+                if (IS_ERR(priv->raminit_ctrlreg) || priv->instance < 0)
                         dev_info(&pdev->dev, "control memory is not used for raminit\n");
                 else
                         priv->raminit = c_can_hw_raminit;