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-rw-r--r--drivers/mtd/devices/block2mtd.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/mtd/devices/block2mtd.c b/drivers/mtd/devices/block2mtd.c
index 457774eef4d0..218eb2af564a 100644
--- a/drivers/mtd/devices/block2mtd.c
+++ b/drivers/mtd/devices/block2mtd.c
@@ -215,7 +215,11 @@ static void block2mtd_free_device(struct block2mtd_dev *dev)
kfree(dev);
}
-static struct block_device *mdtblock_early_get_bdev(const char *devname,
+/*
+ * This function is marked __ref because it calls the __init marked
+ * early_lookup_bdev when called from the early boot code.
+ */
+static struct block_device __ref *mdtblock_early_get_bdev(const char *devname,
fmode_t mode, int timeout, struct block2mtd_dev *dev)
{
struct block_device *bdev = ERR_PTR(-ENODEV);
@@ -223,6 +227,12 @@ static struct block_device *mdtblock_early_get_bdev(const char *devname,
int i;
/*
+ * We can't use early_lookup_bdev from a running system.
+ */
+ if (system_state >= SYSTEM_RUNNING)
+ return bdev;
+
+ /*
* We might not have the root device mounted at this point.
* Try to resolve the device name by other means.
*/