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>
---
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 abf49022edbe..666de922af61 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",
--
2.27.0
