linux-kernel - [PATCH 4.9 106/116] libnvdimm, pfn: fix align attribute

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Date:   Fri,  6 Jan 2017 22:44:28 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Dave Jiang <dave.jiang@...el.com>,
        Dan Williams <dan.j.williams@...el.com>
Subject: [PATCH 4.9 106/116] libnvdimm, pfn: fix align attribute

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Dan Williams <dan.j.williams@...el.com>

commit af7d9f0c57941b465043681cb5c3410f7f3f1a41 upstream.

Fix the format specifier so that the attribute can be parsed correctly.
Currently it returns decimal 1000 for a 4096-byte alignment.

Reported-by: Dave Jiang <dave.jiang@...el.com>
Fixes: 315c562536c4 ("libnvdimm, pfn: add 'align' attribute, default to HPAGE_SIZE")
Signed-off-by: Dan Williams <dan.j.williams@...el.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/nvdimm/pfn_devs.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/nvdimm/pfn_devs.c
+++ b/drivers/nvdimm/pfn_devs.c
@@ -108,7 +108,7 @@ static ssize_t align_show(struct device
 {
 	struct nd_pfn *nd_pfn = to_nd_pfn_safe(dev);
 
-	return sprintf(buf, "%lx\n", nd_pfn->align);
+	return sprintf(buf, "%ld\n", nd_pfn->align);
 }
 
 static ssize_t __align_store(struct nd_pfn *nd_pfn, const char *buf)