rtw89: handle potential uninitialized variable

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The smatch reports:
 rtw8852a.c:1857 rtw8852a_btc_set_wl_txpwr_ctrl() error: uninitialized symbol '_cur'.
 rtw8852a.c:1858 rtw8852a_btc_set_wl_txpwr_ctrl() error: uninitialized symbol '_cur'.

This is because rtw89_mac_txpwr_read32() can possibly return before setting
argument _cur, and the caller will use the uninitialized value. To fix this
problem, check the return value of rtw89_mac_txpwr_read32().

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220318035202.42437-1-pkshih@realtek.com

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Ping-Ke Shih 2022-03-18 11:52:02 +08:00 • committed by Kalle Valo

parent 84fc6999f0

commit 26bb93407c

1 changed files with 2 additions and 1 deletions

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drivers/net/wireless/realtek/rtw89/rtw8852a.c

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