From: Ben Greear <[email protected]>
Don't use sizeof(pointer) when calculating scnprintf offset.
Fixes: mac80211: debugfs: calculate free buffer size correctly (eb3d6175e4a9)
Signed-off-by: Ben Greear <[email protected]>
---
net/mac80211/debugfs_sta.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/mac80211/debugfs_sta.c b/net/mac80211/debugfs_sta.c
index 19195d63ae5c..db852f8c5feb 100644
--- a/net/mac80211/debugfs_sta.c
+++ b/net/mac80211/debugfs_sta.c
@@ -584,7 +584,7 @@ static ssize_t sta_ht_capa_read(struct file *file, char __user *userbuf,
#define PRINT_HT_CAP(_cond, _str) \
do { \
if (_cond) \
- p += scnprintf(p, sizeof(buf)+buf-p, "\t" _str "\n"); \
+ p += scnprintf(p, bufsz + buf - p, "\t" _str "\n"); \
} while (0)
char *buf, *p;
int i;
--
2.20.1