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| author |   Tom Rix <trix@redhat.com> | 2023-04-14 13:11:58 +0300 |
|---|---|---|
| committer |   Johannes Berg <johannes.berg@intel.com> | 2023-04-14 13:15:26 +0200 |
| commit | 8ce437dd5b2e4adef13aa4ecce07392f9966b1ab (patch) | |
| tree | 9090f9a1904743040b05253cd3ac32337534df4b /drivers/net/wireless/intel/iwlwifi/fw/dbg.c | |
| parent | wifi: iwlwifi: mvm: initialize seq variable (diff) | |
| download | linux-8ce437dd5b2e4adef13aa4ecce07392f9966b1ab.tar.xz linux-8ce437dd5b2e4adef13aa4ecce07392f9966b1ab.zip | |
wifi: iwlwifi: fw: move memset before early return
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@redhat.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230414130637.872a7175f1ff.I33802a77a91998276992b088fbe25f61c87c33ac@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/fw/dbg.c')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/fw/dbg.c | 4 |
1 files 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 d5b51496bd0b..d9faaae01abd 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", |