This is a note to let you know that I've just added the patch titled
device-dax: Fix default return code of range_parse()
to the 5.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
device-dax-fix-default-return-code-of-range_parse.patch
and it can be found in the queue-5.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 6009650060b0677db6d67d04065f4bce03a15f68
Author: Shiyang Ruan <ruansy.fnst@xxxxxxxxxxxxxx>
Date: Tue Jan 26 10:13:31 2021 +0800
device-dax: Fix default return code of range_parse()
[ Upstream commit 7323fb22f05ff1d20498d267828870a5fbbaebd6 ]
The return value of range_parse() indicates the size when it is
positive. The error code should be negative.
Signed-off-by: Shiyang Ruan <ruansy.fnst@xxxxxxxxxxxxxx>
Reviewed-by: Joao Martins <joao.m.martins@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20210126021331.1059933-1-ruansy.fnst@xxxxxxxxxxxxxx
Reported-by: Zhang Qilong <zhangqilong3@xxxxxxxxxx>
Fixes: 8490e2e25b5a ("device-dax: add a range mapping allocation attribute")
Signed-off-by: Dan Williams <dan.j.williams@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/dax/bus.c b/drivers/dax/bus.c
index de7b74505e75e..c1d379bd7af33 100644
--- a/drivers/dax/bus.c
+++ b/drivers/dax/bus.c
@@ -1046,7 +1046,7 @@ static ssize_t range_parse(const char *opt, size_t len, struct range *range)
{
unsigned long long addr = 0;
char *start, *end, *str;
- ssize_t rc = EINVAL;
+ ssize_t rc = -EINVAL;
str = kstrdup(opt, GFP_KERNEL);
if (!str)
