media: atomisp: only initialize mode if pipe is not null

During atomisp register, udev tries to open all devices. For
some, pipe is NULL, at least during register time, causing the
driver to try to access a NULL pointer.

So, add an extra check to avoid such condition.

Link: https://lore.kernel.org/linux-media/6406265f2d5f3791d5c7cbd1364186217f19524c.1636364423.git.mchehab+huawei@kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

diff --git a/drivers/staging/media/atomisp/pci/atomisp_fops.c b/drivers/staging/media/atomisp/pci/atomisp_fops.c
index a57d480820bd7800346c46967cd0c56fba5a8915..c7ac313a2edff966da628f7166d922c7fb7fbb88 100644 (file)
--- a/drivers/staging/media/atomisp/pci/atomisp_fops.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_fops.c
@@ -901,7 +901,7 @@ done:
        rt_mutex_unlock(&isp->mutex);
 
        /* Ensure that a mode is set */
-       if (asd)
+       if (asd && pipe)
                v4l2_ctrl_s_ctrl(asd->run_mode, pipe->default_run_mode);
 
        return 0;