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| author | Johan Hovold <johan+linaro@kernel.org> | 2022-10-26 18:21:16 +0200 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2022-10-28 18:25:50 +0530 |
| commit | 04948e757148f870a31f4887ea2239403f516c3c (patch) | |
| tree | ef4b4099901db890473c96e2d7ec27feddfcb327 /drivers/phy | |
| parent | 2a4ea83bb8e54986703187edce59c9130a75eb26 (diff) | |
| download | linux-stable-04948e757148f870a31f4887ea2239403f516c3c.tar.gz linux-stable-04948e757148f870a31f4887ea2239403f516c3c.tar.bz2 linux-stable-04948e757148f870a31f4887ea2239403f516c3c.zip | |
phy: qcom-qmp-combo: fix NULL-deref on runtime resume
Commit fc64623637da ("phy: qcom-qmp-combo,usb: add support for separate
PCS_USB region") started treating the PCS_USB registers as potentially
separate from the PCS registers but used the wrong base when no PCS_USB
offset has been provided.
Fix the PCS_USB base used at runtime resume to prevent dereferencing a
NULL pointer on platforms that do not provide a PCS_USB offset (e.g.
SC7180).
Fixes: fc64623637da ("phy: qcom-qmp-combo,usb: add support for separate PCS_USB region")
Cc: stable@vger.kernel.org # 5.20
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Andrew Halaney <ahalaney@redhat.com>
Link: https://lore.kernel.org/r/20221026162116.26462-1-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/phy')
| -rw-r--r-- | drivers/phy/qualcomm/phy-qcom-qmp-combo.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-combo.c b/drivers/phy/qualcomm/phy-qcom-qmp-combo.c index 9807c4d935cd..ba9d761ec49a 100644 --- a/drivers/phy/qualcomm/phy-qcom-qmp-combo.c +++ b/drivers/phy/qualcomm/phy-qcom-qmp-combo.c @@ -2240,7 +2240,7 @@ static void qmp_combo_enable_autonomous_mode(struct qmp_phy *qphy) static void qmp_combo_disable_autonomous_mode(struct qmp_phy *qphy) { const struct qmp_phy_cfg *cfg = qphy->cfg; - void __iomem *pcs_usb = qphy->pcs_usb ?: qphy->pcs_usb; + void __iomem *pcs_usb = qphy->pcs_usb ?: qphy->pcs; void __iomem *pcs_misc = qphy->pcs_misc; /* Disable i/o clamp_n on resume for normal mode */ |