From: Tom Rix <trix@xxxxxxxxxx>
[ Upstream commit 8ce437dd5b2e4adef13aa4ecce07392f9966b1ab ]
Clang static analysis reports this representative issue
dbg.c:1455:6: warning: Branch condition evaluates to
a garbage value
if (!rxf_data.size)
^~~~~~~~~~~~~~
This check depends on iwl_ini_get_rxf_data() to clear
rxf_data but the function can return early without
doing the clear. So move the memset before the early
return.
Fixes: cc9b6012d34b ("iwlwifi: yoyo: use hweight_long instead of bit manipulating")
Signed-off-by: Tom Rix <trix@xxxxxxxxxx>
Signed-off-by: Gregory Greenman <gregory.greenman@xxxxxxxxx>
Link: https://lore.kernel.org/r/20230414130637.872a7175f1ff.I33802a77a91998276992b088fbe25f61c87c33ac@changeid
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/net/wireless/intel/iwlwifi/fw/dbg.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
index bde6f0764a538..027360e63b926 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
@@ -1388,13 +1388,13 @@ static void iwl_ini_get_rxf_data(struct iwl_fw_runtime *fwrt,
if (!data)
return;
+ memset(data, 0, sizeof(*data));
+
/* make sure only one bit is set in only one fid */
if (WARN_ONCE(hweight_long(fid1) + hweight_long(fid2) != 1,
"fid1=%x, fid2=%x\n", fid1, fid2))
return;
- memset(data, 0, sizeof(*data));
-
if (fid1) {
fifo_idx = ffs(fid1) - 1;
if (WARN_ONCE(fifo_idx >= MAX_NUM_LMAC, "fifo_idx=%d\n",
--
2.39.2
