Reuse the string machine from the device tree data structure instead
of duplicating the data again. This also prevents a potential memory
allocation failure that was not handled previously. Also fixes an early
put of root device node.
Reported-by: Nicholas Mc Guire <redacted>
Signed-off-by: Li Yang <redacted>
---
drivers/soc/fsl/guts.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/soc/fsl/guts.c b/drivers/soc/fsl/guts.c
index 302e0c8d69d9..4f9655087bd7 100644
--- a/drivers/soc/fsl/guts.c
+++ b/drivers/soc/fsl/guts.c
@@ -32,6 +32,7 @@ struct fsl_soc_die_attr {
static struct guts *guts;
static struct soc_device_attribute soc_dev_attr;
static struct soc_device *soc_dev;
+static struct device_node *root;
/* SoC die attribute definition for QorIQ platform */@@ -132,7 +133,7 @@ EXPORT_SYMBOL(fsl_guts_get_svr);
static int fsl_guts_probe(struct platform_device *pdev)
{
- struct device_node *root, *np = pdev->dev.of_node;
+ struct device_node *np = pdev->dev.of_node;
struct device *dev = &pdev->dev;
struct resource *res;
const struct fsl_soc_die_attr *soc_die;@@ -155,9 +156,8 @@ static int fsl_guts_probe(struct platform_device *pdev)
root = of_find_node_by_path("/");
if (of_property_read_string(root, "model", &machine))
of_property_read_string_index(root, "compatible", 0, &machine);
- of_node_put(root);
if (machine)
- soc_dev_attr.machine = devm_kstrdup(dev, machine, GFP_KERNEL);
+ soc_dev_attr.machine = machine;
svr = fsl_guts_get_svr();
soc_die = fsl_soc_die_match(svr, fsl_soc_die);@@ -192,6 +192,7 @@ static int fsl_guts_probe(struct platform_device *pdev)
static int fsl_guts_remove(struct platform_device *dev)
{
soc_device_unregister(soc_dev);
+ of_node_put(root);
return 0;
}
--
2.17.1