linux-kernel - [PATCH V2] mtd: nand: pasemi: switch to pr

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Date:	Fri,  8 Apr 2016 13:13:23 +0200
From:	Rafał Miłecki <zajec5@...il.com>
To:	Boris Brezillon <boris.brezillon@...e-electrons.com>
Cc:	Richard Weinberger <richard@....at>, linux-mtd@...ts.infradead.org,
	Egor Martovetsky <egor@...emi.com>,
	Olof Johansson <olof@...om.net>, Joe Perches <joe@...ches.com>,
	Rafał Miłecki <zajec5@...il.com>,
	David Woodhouse <dwmw2@...radead.org>,
	Brian Norris <computersforpeace@...il.com>,
	linuxppc-dev@...ts.ozlabs.org (open list:LINUX FOR POWERPC PA SEMI
	PWRFICIENT), linux-kernel@...r.kernel.org (open list)
Subject: [PATCH V2] mtd: nand: pasemi: switch to pr_* functions

1) Use pr_fmt to keep messages consistent
2) Don't warn if kzalloc fails as it dumps stack on its own
3) Use %pR format for displaying whole resource to avoid:
warning: format ‘%08llx’ expects type ‘long long unsigned int’, but argument 2 has type ‘resource_size_t’

Signed-off-by: Rafał Miłecki <zajec5@...il.com>
---
 drivers/mtd/nand/pasemi_nand.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/mtd/nand/pasemi_nand.c b/drivers/mtd/nand/pasemi_nand.c
index 63fcb8c..e8372b4 100644
--- a/drivers/mtd/nand/pasemi_nand.c
+++ b/drivers/mtd/nand/pasemi_nand.c
@@ -22,6 +22,8 @@
 
 #undef DEBUG
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/slab.h>
 #include <linux/module.h>
 #include <linux/mtd/mtd.h>
@@ -112,8 +114,6 @@ static int pasemi_nand_probe(struct platform_device *ofdev)
 	/* Allocate memory for MTD device structure and private data */
 	chip = kzalloc(sizeof(struct nand_chip), GFP_KERNEL);
 	if (!chip) {
-		printk(KERN_WARNING
-		       "Unable to allocate PASEMI NAND MTD device structure\n");
 		err = -ENOMEM;
 		goto out;
 	}
@@ -163,13 +163,12 @@ static int pasemi_nand_probe(struct platform_device *ofdev)
 	}
 
 	if (mtd_device_register(pasemi_nand_mtd, NULL, 0)) {
-		printk(KERN_ERR "pasemi_nand: Unable to register MTD device\n");
+		pr_err("Unable to register MTD device\n");
 		err = -ENODEV;
 		goto out_lpc;
 	}
 
-	printk(KERN_INFO "PA Semi NAND flash at %08llx, control at I/O %x\n",
-	       res.start, lpcctl);
+	pr_info("PA Semi NAND flash at %pR, control at I/O %x\n", &res, lpcctl);
 
 	return 0;
 
-- 
1.8.4.5