[PATCH -next] staging: r8188eu: Use GFP_ATOMIC under spin lock

Yang Yingliang
2021-08-10T12:47:25Z

A spin lock is taken in __nat25_db_network_insert() and
update_BCNTIM() is called under spin lock so we should
use GFP_ATOMIC in both place.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
---
drivers/staging/r8188eu/core/rtw_ap.c | 2 +-
drivers/staging/r8188eu/core/rtw_br_ext.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/r8188eu/core/rtw_ap.c b/drivers/staging/r8188eu/core/rtw_ap.c
index ad37f1f02ee2..0586e4a4cbcb 100644
--- a/drivers/staging/r8188eu/core/rtw_ap.c
+++ b/drivers/staging/r8188eu/core/rtw_ap.c
@@ -98,7 +98,7 @@ static void update_BCNTIM(struct adapter *padapter)
}

if (remainder_ielen > 0) {
- pbackup_remainder_ie = kmalloc(remainder_ielen, GFP_KERNEL);
+ pbackup_remainder_ie = kmalloc(remainder_ielen, GFP_ATOMIC);
if (pbackup_remainder_ie && premainder_ie)
memcpy(pbackup_remainder_ie, premainder_ie, remainder_ielen);
}
diff --git a/drivers/staging/r8188eu/core/rtw_br_ext.c b/drivers/staging/r8188eu/core/rtw_br_ext.c
index 28f0452d6ccb..e3ff059ce224 100644
--- a/drivers/staging/r8188eu/core/rtw_br_ext.c
+++ b/drivers/staging/r8188eu/core/rtw_br_ext.c
@@ -394,7 +394,7 @@ static void __nat25_db_network_insert(struct adapter *priv,
}
db = db->next_hash;
}
- db = kmalloc(sizeof(*db), GFP_KERNEL);
+ db = kmalloc(sizeof(*db), GFP_ATOMIC);
if (!db) {
spin_unlock_bh(&priv->br_ext_lock);
return;
--
2.25.1