diff options
| author | Tom Rix <trix@redhat.com> | 2022-02-14 17:33:27 +0300 |
|---|---|---|
| committer | Tony Nguyen <anthony.l.nguyen@intel.com> | 2022-02-19 00:28:39 +0300 |
| commit | ed22d9c8d128293fc7b0b086c7d3654bcb99a8dd (patch) | |
| tree | 1a5922ffe657556261ac138d84228342dab287ba /drivers/net | |
| parent | fadead80fe4c033b5e514fcbadd20b55c4494112 (diff) | |
| download | linux-ed22d9c8d128293fc7b0b086c7d3654bcb99a8dd.tar.xz | |
ice: check the return of ice_ptp_gettimex64
Clang static analysis reports this issue
time64.h:69:50: warning: The left operand of '+'
is a garbage value
set_normalized_timespec64(&ts_delta, lhs.tv_sec + rhs.tv_sec,
~~~~~~~~~~ ^
In ice_ptp_adjtime_nonatomic(), the timespec64 variable 'now'
is set by ice_ptp_gettimex64(). This function can fail
with -EBUSY, so 'now' can have a gargbage value.
So check the return.
Fixes: 06c16d89d2cb ("ice: register 1588 PTP clock device object for E810 devices")
Signed-off-by: Tom Rix <trix@redhat.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_ptp.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_ptp.c b/drivers/net/ethernet/intel/ice/ice_ptp.c index ae291d442539..000c39d163a2 100644 --- a/drivers/net/ethernet/intel/ice/ice_ptp.c +++ b/drivers/net/ethernet/intel/ice/ice_ptp.c @@ -1533,9 +1533,12 @@ exit: static int ice_ptp_adjtime_nonatomic(struct ptp_clock_info *info, s64 delta) { struct timespec64 now, then; + int ret; then = ns_to_timespec64(delta); - ice_ptp_gettimex64(info, &now, NULL); + ret = ice_ptp_gettimex64(info, &now, NULL); + if (ret) + return ret; now = timespec64_add(now, then); return ice_ptp_settime64(info, (const struct timespec64 *)&now); |