From 83025c824fce44b6d007b9bbc506c4189fb89da1 Mon Sep 17 00:00:00 2001
From: Jamie Iles <jamie@jamieiles.com>
Date: Tue, 11 Jan 2011 12:43:49 +0000
Subject: mtd: mpc5121_nfc: don't treat NULL clk as an error
clk_get() returns a struct clk cookie to the driver and some platforms
may return NULL if they only support a single clock. clk_get() has only
failed if it returns a ERR_PTR() encoded pointer.
Signed-off-by: Jamie Iles <jamie@jamieiles.com>
Reviewed-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
---
drivers/mtd/nand/mpc5121_nfc.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
(limited to 'drivers/mtd/nand/mpc5121_nfc.c')
diff --git a/drivers/mtd/nand/mpc5121_nfc.c b/drivers/mtd/nand/mpc5121_nfc.c
index 469e649c911c..ddaf0011aa88 100644
--- a/drivers/mtd/nand/mpc5121_nfc.c
+++ b/drivers/mtd/nand/mpc5121_nfc.c
@@ -29,6 +29,7 @@
#include <linux/clk.h>
#include <linux/gfp.h>
#include <linux/delay.h>
+#include <linux/err.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/io.h>
@@ -758,9 +759,9 @@ static int __devinit mpc5121_nfc_probe(struct platform_device *op,
/* Enable NFC clock */
prv->clk = clk_get(dev, "nfc_clk");
- if (!prv->clk) {
+ if (IS_ERR(prv->clk)) {
dev_err(dev, "Unable to acquire NFC clock!\n");
- retval = -ENODEV;
+ retval = PTR_ERR(prv->clk);
goto error;
}
--
cgit