Check for the return value of devfs_add_partition with IS_ERR.
Otherwise we dereference a NULL pointer when devfs_add_partition
fails.
Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
---
drivers/of/partition.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/of/partition.c b/drivers/of/partition.c
index e2ddec5..3dce844 100644
--- a/drivers/of/partition.c
+++ b/drivers/of/partition.c
@@ -21,6 +21,7 @@
#include <of.h>
#include <malloc.h>
#include <linux/mtd/mtd.h>
+#include <linux/err.h>
#include <nand.h>
struct cdev *of_parse_partition(struct cdev *cdev, struct device_node *node)
@@ -60,6 +61,9 @@ struct cdev *of_parse_partition(struct cdev *cdev, struct device_node *node)
filename = asprintf("%s.%s", cdev->name, partname);
new = devfs_add_partition(cdev->name, offset, size, flags, filename);
+ if (IS_ERR(new))
+ new = NULL;
+
if (new && new->dev)
new->dev->device_node = node;
--
2.0.1
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