usb: typec: qcom-pmic: init value of hdr_len/txbuf_len earlier
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.
Cc: stable@vger.kernel.org
Fixes: a4422ff221
(" usb: typec: qcom: Add Qualcomm PMIC Type-C driver")
Signed-off-by: Rex Nie <rex.nie@jaguarmicro.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Bjorn Andersson <andersson@kernel.org>
Acked-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Link: https://lore.kernel.org/r/20241030133632.2116-1-rex.nie@jaguarmicro.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
parent
498dbd9aea
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@ -227,6 +227,10 @@ qcom_pmic_typec_pdphy_pd_transmit_payload(struct pmic_typec_pdphy *pmic_typec_pd
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spin_lock_irqsave(&pmic_typec_pdphy->lock, flags);
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hdr_len = sizeof(msg->header);
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txbuf_len = pd_header_cnt_le(msg->header) * 4;
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txsize_len = hdr_len + txbuf_len - 1;
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ret = regmap_read(pmic_typec_pdphy->regmap,
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pmic_typec_pdphy->base + USB_PDPHY_RX_ACKNOWLEDGE_REG,
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&val);
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@ -244,10 +248,6 @@ qcom_pmic_typec_pdphy_pd_transmit_payload(struct pmic_typec_pdphy *pmic_typec_pd
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if (ret)
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goto done;
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hdr_len = sizeof(msg->header);
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txbuf_len = pd_header_cnt_le(msg->header) * 4;
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txsize_len = hdr_len + txbuf_len - 1;
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/* Write message header sizeof(u16) to USB_PDPHY_TX_BUFFER_HDR_REG */
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ret = regmap_bulk_write(pmic_typec_pdphy->regmap,
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pmic_typec_pdphy->base + USB_PDPHY_TX_BUFFER_HDR_REG,
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