power: reset: account for const type of of_device_id.data

This driver creates a const structure that it stores in the data
field of an of_device_id array.

Add const to the declaration of the location that receives a value
from the data field to ensure that the compiler will continue to check
that the value is not modified and remove the const-dropping cast on
the access to the data field.

Done using Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/power/reset/at91-sama5d2_shdwc.c b/drivers/power/reset/at91-sama5d2_shdwc.c
index 31080c254124..0206cce328b3 100644
--- a/drivers/power/reset/at91-sama5d2_shdwc.c
+++ b/drivers/power/reset/at91-sama5d2_shdwc.c
@@ -68,7 +68,7 @@ struct shdwc_config {
 };
 
 struct shdwc {
-        struct shdwc_config *cfg;
+        const struct shdwc_config *cfg;
         void __iomem *at91_shdwc_base;
 };
 
@@ -260,7 +260,7 @@ static int __init at91_shdwc_probe(struct platform_device *pdev)
         }
 
         match = of_match_node(at91_shdwc_of_match, pdev->dev.of_node);
-        at91_shdwc->cfg = (struct shdwc_config *)(match->data);
+        at91_shdwc->cfg = match->data;
 
         sclk = devm_clk_get(&pdev->dev, NULL);
         if (IS_ERR(sclk))