[PATCH 5.10 172/299] drm/msm/dp: Fix incorrect NULL check kbot warnings in DP driver

[Greg Kroah-Hartman]

From: Abhinav Kumar <abhinavk@xxxxxxxxxxxxxx>

[ Upstream commit 7d649cfe0314aad2ba18042885ab9de2f13ad809 ]

Fix an incorrect NULL check reported by kbot in the MSM DP driver

smatch warnings:
drivers/gpu/drm/msm/dp/dp_hpd.c:37 dp_hpd_connect()
error: we previously assumed 'hpd_priv->dp_cb' could be null
(see line 37)

Reported-by: kernel test robot <lkp@xxxxxxxxx>
Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Signed-off-by: Abhinav Kumar <abhinavk@xxxxxxxxxxxxxx>
Reviewed-by: Stephen Boyd <swboyd@xxxxxxxxxxxx>
Link: https://lore.kernel.org/r/1614971839-2686-2-git-send-email-abhinavk@xxxxxxxxxxxxxx
Signed-off-by: Rob Clark <robdclark@xxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/gpu/drm/msm/dp/dp_hpd.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/msm/dp/dp_hpd.c b/drivers/gpu/drm/msm/dp/dp_hpd.c
index 5b8fe32022b5..e1c90fa47411 100644
--- a/drivers/gpu/drm/msm/dp/dp_hpd.c
+++ b/drivers/gpu/drm/msm/dp/dp_hpd.c
@@ -34,8 +34,8 @@ int dp_hpd_connect(struct dp_usbpd *dp_usbpd, bool hpd)
 
 	dp_usbpd->hpd_high = hpd;
 
-	if (!hpd_priv->dp_cb && !hpd_priv->dp_cb->configure
-				&& !hpd_priv->dp_cb->disconnect) {
+	if (!hpd_priv->dp_cb || !hpd_priv->dp_cb->configure
+				|| !hpd_priv->dp_cb->disconnect) {
 		pr_err("hpd dp_cb not initialized\n");
 		return -EINVAL;
 	}
-- 
2.30.2