[PATCH] mtd/nand: Don't add disabled nand flash devices

Chunhe Lan Chunhe.Lan at freescale.com
Tue Aug 16 05:27:35 EDT 2011


Nand flash nodes with the property status="disabled" are not
usable and so avoid adding "disabled" nand flash devices with
the system.

Signed-off-by: Chunhe Lan <Chunhe.Lan at freescale.com>
---
 drivers/mtd/nand/fsl_elbc_nand.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/drivers/mtd/nand/fsl_elbc_nand.c b/drivers/mtd/nand/fsl_elbc_nand.c
index 33d8aad..8212c12 100644
--- a/drivers/mtd/nand/fsl_elbc_nand.c
+++ b/drivers/mtd/nand/fsl_elbc_nand.c
@@ -1,6 +1,6 @@
 /* Freescale Enhanced Local Bus Controller NAND driver
  *
- * Copyright © 2006-2007, 2010 Freescale Semiconductor
+ * Copyright © 2006-2007, 2010-2011 Freescale Semiconductor
  *
  * Authors: Nick Spence <nick.spence at freescale.com>,
  *          Scott Wood <scottwood at freescale.com>
@@ -849,6 +849,9 @@ static int __devinit fsl_elbc_nand_probe(struct platform_device *pdev)
 	struct device *dev;
 	struct device_node *node = pdev->dev.of_node;
 
+	if (!of_device_is_available(node))
+		return -ENODEV;
+
 	if (!fsl_lbc_ctrl_dev || !fsl_lbc_ctrl_dev->regs)
 		return -ENODEV;
 	lbc = fsl_lbc_ctrl_dev->regs;
-- 
1.5.6.5





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