[PATCH] wifi: mt76: mt7915: fallback to non-wed mode if platform_get_resource fails in mt7915_mmio_wed_init()

Lorenzo Bianconi lorenzo at kernel.org
Fri Oct 20 03:45:19 PDT 2023


mt76 assumes mt7915_mmio_wed_init can fail just after wed driver has
been attached running mtk_wed_device_attach().
Fall back to non-wed mode if platform_get_resource fails in
mt7915_mmio_wed_init routines.

Fixes: eebb70976be5 ("wifi: mt76: mt7915: enable wed for mt7986-wmac chipset")
Signed-off-by: Lorenzo Bianconi <lorenzo at kernel.org>
---
 drivers/net/wireless/mediatek/mt76/mt7915/mmio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c b/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c
index c404c90b58a6..aff4f21e843d 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c
@@ -636,7 +636,7 @@ int mt7915_mmio_wed_init(struct mt7915_dev *dev, void *pdev_ptr,
 
 		res = platform_get_resource(plat_dev, IORESOURCE_MEM, 0);
 		if (!res)
-			return -ENOMEM;
+			return 0;
 
 		wed->wlan.platform_dev = plat_dev;
 		wed->wlan.bus_type = MTK_WED_BUS_AXI;
-- 
2.41.0




More information about the Linux-mediatek mailing list