From: Abhinav Kumar <abhinavk@codeaurora.org>
To: dri-devel@lists.freedesktop.org
Cc: Abhinav Kumar <abhinavk@codeaurora.org>,
linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org,
robdclark@gmail.com, seanpaul@chromium.org, swboyd@chromium.org,
nganji@codeaurora.org, aravindh@codeaurora.org,
tanmay@codeaurora.org, khsieh@codeaurora.org,
dan.carpenter@oracle.com
Subject: [PATCH 2/3] drm/msm/dp: Fix incorrect NULL check kbot warnings in DP driver
Date: Fri, 5 Mar 2021 11:17:18 -0800 [thread overview]
Message-ID: <1614971839-2686-2-git-send-email-abhinavk@codeaurora.org> (raw)
In-Reply-To: <1614971839-2686-1-git-send-email-abhinavk@codeaurora.org>
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@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Abhinav Kumar <abhinavk@codeaurora.org>
---
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 5b8fe3202..e1c90fa 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;
}
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
next prev parent reply other threads:[~2021-03-05 19:18 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-05 19:17 [PATCH 1/3] drm/msm/dp: Fix indentation kbot warnings in DP driver Abhinav Kumar
2021-03-05 19:17 ` Abhinav Kumar [this message]
2021-03-26 1:17 ` [PATCH 2/3] drm/msm/dp: Fix incorrect NULL check " Stephen Boyd
2021-03-05 19:17 ` [PATCH 3/3] drm/msm/dp: delete unnecessary debugfs error handling Abhinav Kumar
2021-03-26 1:18 ` Stephen Boyd
2021-03-26 1:17 ` [PATCH 1/3] drm/msm/dp: Fix indentation kbot warnings in DP driver Stephen Boyd
2021-05-26 19:03 ` patchwork-bot+linux-arm-msm
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