linux-kernel - [V3] firmware: vpd: use memunmap instead of iounmap

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Date:   Fri, 11 Aug 2017 07:13:13 +0800
From:   Pan Bian <bianpan2016@....com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Guenter Roeck <groeck@...omium.org>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Wei Yongjun <weiyongjun1@...wei.com>,
        Thierry Escande <thierry.escande@...labora.com>,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>,
        Wei-Ning Huang <wnhuang@...gle.com>
Cc:     linux-kernel@...r.kernel.org, Pan Bian <bianpan2016@....com>
Subject: [V3] firmware: vpd: use memunmap instead of iounmap

In functions vpd_sections_init() and vpd_section_init(), iounmap() is
used to unmap memory. However, in these cases, memunmap() should be
used.

Signed-off-by: Pan Bian <bianpan2016@....com>
---
V2: change error label err_iounmap to err_memunmap
V3: add changes from V1 to V2
---
 drivers/firmware/google/vpd.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/firmware/google/vpd.c b/drivers/firmware/google/vpd.c
index 7894572..35e553b 100644
--- a/drivers/firmware/google/vpd.c
+++ b/drivers/firmware/google/vpd.c
@@ -202,7 +202,7 @@ static int vpd_section_init(const char *name, struct vpd_section *sec,
 	sec->raw_name = kasprintf(GFP_KERNEL, "%s_raw", name);
 	if (!sec->raw_name) {
 		err = -ENOMEM;
-		goto err_iounmap;
+		goto err_memunmap;
 	}
 
 	sysfs_bin_attr_init(&sec->bin_attr);
@@ -233,8 +233,8 @@ static int vpd_section_init(const char *name, struct vpd_section *sec,
 	sysfs_remove_bin_file(vpd_kobj, &sec->bin_attr);
 err_free_raw_name:
 	kfree(sec->raw_name);
-err_iounmap:
-	iounmap(sec->baseaddr);
+err_memunmap:
+	memunmap(sec->baseaddr);
 	return err;
 }
 
@@ -245,7 +245,7 @@ static int vpd_section_destroy(struct vpd_section *sec)
 		kobject_put(sec->kobj);
 		sysfs_remove_bin_file(vpd_kobj, &sec->bin_attr);
 		kfree(sec->raw_name);
-		iounmap(sec->baseaddr);
+		memunmap(sec->baseaddr);
 	}
 
 	return 0;
@@ -262,7 +262,7 @@ static int vpd_sections_init(phys_addr_t physaddr)
 		return -ENOMEM;
 
 	memcpy_fromio(&header, temp, sizeof(struct vpd_cbmem));
-	iounmap(temp);
+	memunmap(temp);
 
 	if (header.magic != VPD_CBMEM_MAGIC)
 		return -ENODEV;
-- 
1.9.1