[PATCH 5.10 11/80] wifi: cfg80211: debugfs: fix return type in ht40allow_map_read()

Greg Kroah-Hartman
2022-09-06T13:32:24Z

From: Dan Carpenter <dan.carpenter@oracle.com>

[ Upstream commit d776763f48084926b5d9e25507a3ddb7c9243d5e ]

The return type is supposed to be ssize_t, which is signed long,
but "r" was declared as unsigned int. This means that on 64 bit systems
we return positive values instead of negative error codes.

Fixes: 80a3511d70e8 ("cfg80211: add debugfs HT40 allow map")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/YutvOQeJm0UjLhwU@kili
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/wireless/debugfs.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/wireless/debugfs.c b/net/wireless/debugfs.c
index 76b845f68ac89..d80b06d669593 100644
--- a/net/wireless/debugfs.c
+++ b/net/wireless/debugfs.c
@@ -65,9 +65,10 @@ static ssize_t ht40allow_map_read(struct file *file,
{
struct wiphy *wiphy = file->private_data;
char *buf;
- unsigned int offset = 0, buf_size = PAGE_SIZE, i, r;
+ unsigned int offset = 0, buf_size = PAGE_SIZE, i;
enum nl80211_band band;
struct ieee80211_supported_band *sband;
+ ssize_t r;

buf = kzalloc(buf_size, GFP_KERNEL);
if (!buf)
--
2.35.1