This is a note to let you know that I've just added the patch titled
wifi: mt76: mt7915: fallback to non-wed mode if platform_get_resource fails in mt7915_mmio_wed_init()
to the 6.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
wifi-mt76-mt7915-fallback-to-non-wed-mode-if-platfor.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 576df8e1f7223cbc010a0a8ed9057091ce39a62f
Author: Lorenzo Bianconi <lorenzo@xxxxxxxxxx>
Date: Fri Oct 20 12:45:19 2023 +0200
wifi: mt76: mt7915: fallback to non-wed mode if platform_get_resource fails in mt7915_mmio_wed_init()
[ Upstream commit 5f9d5d4fc561e7bd3a18742f1fdb96cab98f1870 ]
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@xxxxxxxxxx>
Signed-off-by: Felix Fietkau <nbd@xxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c b/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c
index fc7ace638ce8..f4ad7219f94f 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c
@@ -742,7 +742,7 @@ 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;
