Hi, On Wed, Oct 30, 2024 at 10:27:54AM +0800, Rex Nie wrote: > If the read of USB_PDPHY_RX_ACKNOWLEDGE_REG failed, then hdr_len and > txbuf_len are uninitialized. This commit stops to print uninitialized > value and misleading/false data. > > Signed-off-by: Rex Nie <rex.nie@xxxxxxxxxxxxxxx> > --- You need to include a changelog also for the patch itself here, after that "---" separator. This patch is also still missing the Fixes tag. You can read more about how to send the patches from the documentation: https://www.kernel.org/doc/html/latest/process/submitting-patches.html So please send v3 with those fixed. Don't forget to Cc the stable ml.: https://www.kernel.org/doc/html/latest/process/submitting-patches.html#select-the-recipients-for-your-patch thanks, > drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.c | 8 ++++---- > 1 file changed, 4 insertions(+), 4 deletions(-) > > diff --git a/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.c b/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.c > index 5b7f52b74a40..726423684bae 100644 > --- a/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.c > +++ b/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.c > @@ -227,6 +227,10 @@ qcom_pmic_typec_pdphy_pd_transmit_payload(struct pmic_typec_pdphy *pmic_typec_pd > > spin_lock_irqsave(&pmic_typec_pdphy->lock, flags); > > + hdr_len = sizeof(msg->header); > + txbuf_len = pd_header_cnt_le(msg->header) * 4; > + txsize_len = hdr_len + txbuf_len - 1; > + > ret = regmap_read(pmic_typec_pdphy->regmap, > pmic_typec_pdphy->base + USB_PDPHY_RX_ACKNOWLEDGE_REG, > &val); > @@ -244,10 +248,6 @@ qcom_pmic_typec_pdphy_pd_transmit_payload(struct pmic_typec_pdphy *pmic_typec_pd > if (ret) > goto done; > > - hdr_len = sizeof(msg->header); > - txbuf_len = pd_header_cnt_le(msg->header) * 4; > - txsize_len = hdr_len + txbuf_len - 1; > - > /* Write message header sizeof(u16) to USB_PDPHY_TX_BUFFER_HDR_REG */ > ret = regmap_bulk_write(pmic_typec_pdphy->regmap, > pmic_typec_pdphy->base + USB_PDPHY_TX_BUFFER_HDR_REG, > -- > 2.17.1 -- heikki
