* [PATCH] mt76: mt7915: fix return condition in mt7915_tm_reg_backup_restore()
@ 2021-11-05 9:50 Shayne Chen
0 siblings, 0 replies; only message in thread
From: Shayne Chen @ 2021-11-05 9:50 UTC (permalink / raw)
To: Felix Fietkau
Cc: linux-wireless, Lorenzo Bianconi, Ryder Lee, Evelyn Tsai,
linux-mediatek, Shayne Chen
Fix the issue that some registers not configured properly after
restarting testmode.
(e.g. change state from idle to off, and off to idle)
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
---
drivers/net/wireless/mediatek/mt76/mt7915/testmode.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/testmode.c b/drivers/net/wireless/mediatek/mt76/mt7915/testmode.c
index 89aae32..a541fc4 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/testmode.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/testmode.c
@@ -361,14 +361,14 @@ mt7915_tm_reg_backup_restore(struct mt7915_phy *phy)
return;
}
- if (b)
- return;
+ if (!b) {
+ b = devm_kzalloc(dev->mt76.dev, 4 * n_regs, GFP_KERNEL);
+ if (!b)
+ return;
- b = devm_kzalloc(dev->mt76.dev, 4 * n_regs, GFP_KERNEL);
- if (!b)
- return;
+ phy->test.reg_backup = b;
+ }
- phy->test.reg_backup = b;
for (i = 0; i < n_regs; i++)
b[i] = mt76_rr(dev, reg_backup_list[i].band[ext_phy]);
--
2.25.1
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