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rtlwifi: rtl8723: Add error handling to no existing firmware 

Without firmware, driver wastes time to download and wait for MCU bootup,
and then kernel core dump finally. If request_firmware fails, the value
max_fw_size=0 is set, so we check the value before downloading firmware.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Ping-Ke Shih 2017-12-29 16:31:09 +08:00 committed by Kalle Valo
parent d63589cb1f
commit 981a2b6e05
1 changed files with 1 additions and 1 deletions
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2
drivers/net/wireless/realtek/rtlwifi/rtl8723com/fw_common.c
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@ -196,7 +196,7 @@ int rtl8723_download_fw(struct ieee80211_hw *hw,
enum version_8723e version = rtlhal->version;
int max_page;
if (!rtlhal->pfirmware)
if (rtlpriv->max_fw_size == 0 || !rtlhal->pfirmware)
return 1;
pfwheader = (struct rtlwifi_firmware_header *)rtlhal->pfirmware;