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platform_kernel-5.15
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rt2x00usb: initialize the read value in case of failure 

My understanding ist that rt2x00usb_register_read() is void and so the
reader is unaware of read errors and assumes that whatever was on the
stack as it was about to read.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Sebastian Andrzej Siewior 2015-03-12 15:35:44 +01:00 committed by Kalle Valo
parent 6e9344fd8e
commit e4fcfaf802
1 changed files with 2 additions and 2 deletions
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4
drivers/net/wireless/rt2x00/rt2x00usb.h
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@ -199,7 +199,7 @@ static inline void rt2x00usb_register_read(struct rt2x00_dev *rt2x00dev,
const unsigned int offset,
u32 *value)
{
__le32 reg;
__le32 reg = 0;
rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_READ,
USB_VENDOR_REQUEST_IN, offset,
&reg, sizeof(reg));
@ -219,7 +219,7 @@ static inline void rt2x00usb_register_read_lock(struct rt2x00_dev *rt2x00dev,
const unsigned int offset,
u32 *value)
{
__le32 reg;
__le32 reg = 0;
rt2x00usb_vendor_req_buff_lock(rt2x00dev, USB_MULTI_READ,
USB_VENDOR_REQUEST_IN, offset,
&reg, sizeof(reg), REGISTER_TIMEOUT);