The function performs a check on the "phy" input parameter, however, it
is used before the check.
Initialize the "dev" variable after the sanity check to avoid a possible
NULL pointer dereference.
Fixes: 5c8290284402b ("drm/msm/dsi: Split PHY drivers to separate files")
Addresses-Coverity-ID: 1493860 ("Null pointer dereference")
Signed-off-by: José Expósito <jose.exposito89@xxxxxxxxx>
---
drivers/gpu/drm/msm/dsi/phy/dsi_phy.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c
index 9842e04b5858..baa6af0c3bcc 100644
--- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c
+++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c
@@ -808,12 +808,14 @@ int msm_dsi_phy_enable(struct msm_dsi_phy *phy,
struct msm_dsi_phy_clk_request *clk_req,
struct msm_dsi_phy_shared_timings *shared_timings)
{
- struct device *dev = &phy->pdev->dev;
+ struct device *dev;
int ret;
if (!phy || !phy->cfg->ops.enable)
return -EINVAL;
+ dev = &phy->pdev->dev;
+
ret = dsi_phy_enable_resource(phy);
if (ret) {
DRM_DEV_ERROR(dev, "%s: resource enable failed, %d\n",
--
2.25.1
