Bug 208577

Summary: Incremental patch-4.9.227-228 break the ath9k_htc driver code
Product: Drivers Reporter: Luc Bertho (luc.bertho)
Component: network-wirelessAssignee: drivers_network-wireless (drivers_network-wireless)
Status: NEW ---    
Severity: normal    
Priority: P1    
Hardware: All   
OS: Linux   
Kernel Version: kernel 4.9.228 Subsystem:
Regression: No Bisected commit-id:

Description Luc Bertho 2020-07-15 21:47:43 UTC 
Hello
Incremental patch-4.9.227-228 break the ath9k_htc driver code.
tested on two different laptops ASUS and HP (same era) Intel Core i3/i5 first generation,
and with two generic USB Adapters.
same prob with kernel 5.4.47 and other kernels might be impacted as well.

dmesg :
[  295.375153] usb 2-1.2: new high-speed USB device number 5 using ehci-pci
[  295.474886] usb 2-1.2: New USB device found, idVendor=0cf3, idProduct=9271
[  295.474896] usb 2-1.2: New USB device strings: Mfr=16, Product=32, SerialNumber=48
[  295.474903] usb 2-1.2: Product: UB93
[  295.474908] usb 2-1.2: Manufacturer: ATHEROS
[  295.474914] usb 2-1.2: SerialNumber: 12345
[  295.475352] usb 2-1.2: ath9k_htc: Firmware ath9k_htc/htc_9271-1.4.0.fw requested
[  295.763801] usb 2-1.2: ath9k_htc: Transferred FW: ath9k_htc/htc_9271-1.4.0.fw, size: 51008
[  296.016274] ath9k_htc 2-1.2:1.0: ath9k_htc: HTC initialized with 33 credits
[  325.987036] ath9k_htc: Failed to initialize the device
[  325.987186] usb 2-1.2: ath9k_htc: USB layer deinitialized

Best regards

PS I am at your disposal for further information or tests to be launched and which could be useful.