[PATCH v2] mt76: mt7915: fix return condition in mt7915_tm_reg_backup_restore()
From: Shayne Chen <shayne.chen@mediatek.com>
Date: 2021-11-05 10:37:42
Also in:
linux-wireless
Subsystem:
mediatek mt76 wireless lan driver, the rest · Maintainers:
Felix Fietkau, Lorenzo Bianconi, Ryder Lee, Linus Torvalds
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> --- v2: only need to backup once --- .../wireless/mediatek/mt76/mt7915/testmode.c | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/testmode.c b/drivers/net/wireless/mediatek/mt76/mt7915/testmode.c
index 89aae32..af80c2c 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/testmode.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/testmode.c@@ -361,16 +361,15 @@ mt7915_tm_reg_backup_restore(struct mt7915_phy *phy) return; } - if (b) - return; - - b = devm_kzalloc(dev->mt76.dev, 4 * n_regs, GFP_KERNEL); - if (!b) - return; + if (!b) { + b = devm_kzalloc(dev->mt76.dev, 4 * n_regs, GFP_KERNEL); + if (!b) + return; - phy->test.reg_backup = b; - for (i = 0; i < n_regs; i++) - b[i] = mt76_rr(dev, reg_backup_list[i].band[ext_phy]); + phy->test.reg_backup = b; + for (i = 0; i < n_regs; i++) + b[i] = mt76_rr(dev, reg_backup_list[i].band[ext_phy]); + } mt76_clear(dev, MT_AGG_PCR0(ext_phy, 0), MT_AGG_PCR0_MM_PROT | MT_AGG_PCR0_GF_PROT | MT_AGG_PCR0_ERP_PROT |
--
2.25.1
_______________________________________________
Linux-mediatek mailing list
Linux-mediatek@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-mediatek