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rtw88: fix fw_fifo_addr check

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The clang build reports this warning

fw.c:1485:21: warning: address of array 'rtwdev->chip->fw_fifo_addr'
  will always evaluate to 'true'
        if (!rtwdev->chip->fw_fifo_addr) {

fw_fifo_addr is an array in rtw_chip_info so it is always
nonzero.  A better check is if the first element of the array is
nonzero.  In the cases where fw_fifo_addr is initialized by rtw88b
and rtw88c, the first array element is 0x780.

Fixes: 0fbc2f0f34 ("rtw88: add dump firmware fifo support")
Signed-off-by: Tom Rix <trix@redhat.com>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Acked-by: Tzu-En Huang <tehuang@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201011155438.15892-1-trix@redhat.com
This commit is contained in:
Tom Rix 2020-10-11 08:54:38 -07:00 committed by Kalle Valo
parent 3650b228f8
commit ddcd945e55
1 changed files with 1 additions and 1 deletions
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2
drivers/net/wireless/realtek/rtw88/fw.c
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@ -1482,7 +1482,7 @@ static bool rtw_fw_dump_check_size(struct rtw_dev *rtwdev,
int rtw_fw_dump_fifo(struct rtw_dev *rtwdev, u8 fifo_sel, u32 addr, u32 size,
u32 *buffer)
{
if (!rtwdev->chip->fw_fifo_addr) {
if (!rtwdev->chip->fw_fifo_addr[0]) {
rtw_dbg(rtwdev, RTW_DBG_FW, "chip not support dump fw fifo\n");
return -ENOTSUPP;
}