From: ira.weiny@intel.com
To: Dan Williams <dan.j.williams@intel.com>
Cc: Ira Weiny <ira.weiny@intel.com>,
Vishal Verma <vishal.l.verma@intel.com>,
linux-kernel@vger.kernel.org, linux-nvdimm@lists.01.org,
linux-fsdevel@vger.kernel.org
Subject: [PATCH 3/3] dax: Ensure errno is returned from dax_direct_access
Date: Tue, 25 May 2021 10:24:28 -0700 [thread overview]
Message-ID: <20210525172428.3634316-4-ira.weiny@intel.com> (raw)
In-Reply-To: <20210525172428.3634316-1-ira.weiny@intel.com>
From: Ira Weiny <ira.weiny@intel.com>
If the caller specifies a negative nr_pages that is an invalid
parameter.
Return -EINVAL to ensure callers get an errno if they want to check it.
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
---
drivers/dax/super.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/dax/super.c b/drivers/dax/super.c
index 5fa6ae9dbc8b..44736cbd446e 100644
--- a/drivers/dax/super.c
+++ b/drivers/dax/super.c
@@ -313,7 +313,7 @@ long dax_direct_access(struct dax_device *dax_dev, pgoff_t pgoff, long nr_pages,
return -ENXIO;
if (nr_pages < 0)
- return nr_pages;
+ return -EINVAL;
avail = dax_dev->ops->direct_access(dax_dev, pgoff, nr_pages,
kaddr, pfn);
--
2.28.0.rc0.12.gb6a658bd00c9
prev parent reply other threads:[~2021-05-25 17:24 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-25 17:24 [PATCH 0/3] DAX Small clean ups ira.weiny
2021-05-25 17:24 ` [PATCH 1/3] fs/fuse: Remove unneeded kaddr parameter ira.weiny
2021-06-11 17:23 ` Ira Weiny
2021-06-18 7:01 ` Miklos Szeredi
2021-06-18 12:49 ` Vivek Goyal
2021-05-25 17:24 ` [PATCH 2/3] fs/dax: Clarify nr_pages to dax_direct_access() ira.weiny
2021-05-25 17:24 ` ira.weiny [this message]
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