| Message ID | 20201019160604.1609180-1-Jerome.Pouiller@silabs.com |
|---|---|
| State | New |
| Headers | show |
| Series | [1/2] staging: wfx: fix use of uninitialized pointer | expand |
On Mon, Oct 19, 2020 at 06:06:03PM +0200, Jerome Pouiller wrote: > From: Jérôme Pouiller <jerome.pouiller@silabs.com> > > With -Wuninitialized, the compiler complains: > > drivers/staging/wfx/data_tx.c:34:19: warning: variable 'band' is uninitialized when used here [-Wuninitialized] > if (rate->idx >= band->n_bitrates) { > ^~~~ > > Reported-by: kernel test robot <lkp@intel.com> > Reported-by: Nathan Chancellor <natechancellor@gmail.com> > Fixes: 868fd970e187 ("staging: wfx: improve robustness of wfx_get_hw_rate()") > Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com> Reviewed-by: Nathan Chancellor <natechancellor@gmail.com> > --- > drivers/staging/wfx/data_tx.c | 8 ++++---- > 1 file changed, 4 insertions(+), 4 deletions(-) > > diff --git a/drivers/staging/wfx/data_tx.c b/drivers/staging/wfx/data_tx.c > index 41f6a604a697..36b36ef39d05 100644 > --- a/drivers/staging/wfx/data_tx.c > +++ b/drivers/staging/wfx/data_tx.c > @@ -31,13 +31,13 @@ static int wfx_get_hw_rate(struct wfx_dev *wdev, > } > return rate->idx + 14; > } > - if (rate->idx >= band->n_bitrates) { > - WARN(1, "wrong rate->idx value: %d", rate->idx); > - return -1; > - } > // WFx only support 2GHz, else band information should be retrieved > // from ieee80211_tx_info > band = wdev->hw->wiphy->bands[NL80211_BAND_2GHZ]; > + if (rate->idx >= band->n_bitrates) { > + WARN(1, "wrong rate->idx value: %d", rate->idx); > + return -1; > + } > return band->bitrates[rate->idx].hw_value; > } > > -- > 2.28.0 >
diff --git a/drivers/staging/wfx/data_tx.c b/drivers/staging/wfx/data_tx.c index 41f6a604a697..36b36ef39d05 100644 --- a/drivers/staging/wfx/data_tx.c +++ b/drivers/staging/wfx/data_tx.c @@ -31,13 +31,13 @@ static int wfx_get_hw_rate(struct wfx_dev *wdev, } return rate->idx + 14; } - if (rate->idx >= band->n_bitrates) { - WARN(1, "wrong rate->idx value: %d", rate->idx); - return -1; - } // WFx only support 2GHz, else band information should be retrieved // from ieee80211_tx_info band = wdev->hw->wiphy->bands[NL80211_BAND_2GHZ]; + if (rate->idx >= band->n_bitrates) { + WARN(1, "wrong rate->idx value: %d", rate->idx); + return -1; + } return band->bitrates[rate->idx].hw_value; }