From: Shiyang Ruan ruansy.fnst@cn.fujitsu.com
[ 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@cn.fujitsu.com Reviewed-by: Joao Martins joao.m.martins@oracle.com Link: https://lore.kernel.org/r/20210126021331.1059933-1-ruansy.fnst@cn.fujitsu.co... Reported-by: Zhang Qilong zhangqilong3@huawei.com Fixes: 8490e2e25b5a ("device-dax: add a range mapping allocation attribute") Signed-off-by: Dan Williams dan.j.williams@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/dax/bus.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
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)