UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

mt76: mt76x02: do not access uninitialized NAPI structs 

Fixes a crash on MMIO devices when running into the watchdog reset

Fixes: d3377b78ce ("mt76: add HE phy modes and hardware queue")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200615181341.81871-1-nbd@nbd.name
This commit is contained in:
Felix Fietkau 2020-06-15 20:13:41 +02:00 committed by Kalle Valo
parent 6247c3b077
commit 4ac668a3b8
1 changed files with 3 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/net/wireless/mediatek/mt76/mt76x02_mmio.c
View File

@ -456,8 +456,9 @@ static void mt76x02_watchdog_reset(struct mt76x02_dev *dev)
tasklet_disable(&dev->mt76.tx_tasklet);
napi_disable(&dev->mt76.tx_napi);
for (i = 0; i < ARRAY_SIZE(dev->mt76.napi); i++)
mt76_for_each_q_rx(&dev->mt76, i) {
napi_disable(&dev->mt76.napi[i]);
}
mutex_lock(&dev->mt76.mutex);
@ -515,7 +516,7 @@ static void mt76x02_watchdog_reset(struct mt76x02_dev *dev)
tasklet_enable(&dev->mt76.pre_tbtt_tasklet);
for (i = 0; i < ARRAY_SIZE(dev->mt76.napi); i++) {
mt76_for_each_q_rx(&dev->mt76, i) {
napi_enable(&dev->mt76.napi[i]);
napi_schedule(&dev->mt76.napi[i]);
}