tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
master
head:   fe07bfda2fb9cdef8a4d4008a409bb02f35f1bd8
commit: c943b4948b5848fc0e07f875edbd35a973879e22 drm/msm/dp: add displayPort 
driver support
config: arm64-randconfig-m031-20210301 (attached as .config)
compiler: aarch64-linux-gcc (GCC) 9.3.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <l...@intel.com>
Reported-by: Dan Carpenter <dan.carpen...@oracle.com>

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)
drivers/gpu/drm/msm/dp/dp_power.c:203 dp_power_clk_enable() warn: inconsistent 
indenting

vim +37 drivers/gpu/drm/msm/dp/dp_hpd.c

c943b4948b5848 Chandan Uddaraju 2020-08-27  27  static int 
dp_hpd_connect(struct dp_usbpd *dp_usbpd, bool hpd)
c943b4948b5848 Chandan Uddaraju 2020-08-27  28  {
c943b4948b5848 Chandan Uddaraju 2020-08-27  29          int rc = 0;
c943b4948b5848 Chandan Uddaraju 2020-08-27  30          struct dp_hpd_private 
*hpd_priv;
c943b4948b5848 Chandan Uddaraju 2020-08-27  31  
c943b4948b5848 Chandan Uddaraju 2020-08-27  32          hpd_priv = 
container_of(dp_usbpd, struct dp_hpd_private,
c943b4948b5848 Chandan Uddaraju 2020-08-27  33                                  
        dp_usbpd);
c943b4948b5848 Chandan Uddaraju 2020-08-27  34  
c943b4948b5848 Chandan Uddaraju 2020-08-27  35          dp_usbpd->hpd_high = 
hpd;
c943b4948b5848 Chandan Uddaraju 2020-08-27  36  
c943b4948b5848 Chandan Uddaraju 2020-08-27 @37          if (!hpd_priv->dp_cb && 
!hpd_priv->dp_cb->configure
                                                            ^^^^^^^^^^^^^^^^    
^^^^^^^^^^^^^^^^^^^^^^^^^^^
Probably || was intended instead of &&.  If "hpd_priv->dp_cb" is NULL
this will Oops.

c943b4948b5848 Chandan Uddaraju 2020-08-27  38                                  
&& !hpd_priv->dp_cb->disconnect) {
c943b4948b5848 Chandan Uddaraju 2020-08-27  39                  pr_err("hpd 
dp_cb not initialized\n");
c943b4948b5848 Chandan Uddaraju 2020-08-27  40                  return -EINVAL;
c943b4948b5848 Chandan Uddaraju 2020-08-27  41          }
c943b4948b5848 Chandan Uddaraju 2020-08-27  42          if (hpd)
c943b4948b5848 Chandan Uddaraju 2020-08-27  43                  
hpd_priv->dp_cb->configure(hpd_priv->dev);
c943b4948b5848 Chandan Uddaraju 2020-08-27  44          else
c943b4948b5848 Chandan Uddaraju 2020-08-27  45                  
hpd_priv->dp_cb->disconnect(hpd_priv->dev);
c943b4948b5848 Chandan Uddaraju 2020-08-27  46  
c943b4948b5848 Chandan Uddaraju 2020-08-27  47          return rc;
c943b4948b5848 Chandan Uddaraju 2020-08-27  48  }

---
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https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org

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