From 239f9a4d9868ceb8e71804dfd03d7e6bbc1658e2 Mon Sep 17 00:00:00 2001
From: fly1ngpengu1ns <u202112008@hust.edu.cn>
Date: Tue, 4 Apr 2023 03:21:08 +0000
Subject: [PATCH] Fixed fault handler when ctrl_hdlr is NULL

Signed-off-by: fly1ngpengu1ns <u202112008@hust.edu.cn>
---
 platform/mipi_csi/mipi_v4l2_adapter.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/platform/mipi_csi/mipi_v4l2_adapter.c b/platform/mipi_csi/mipi_v4l2_adapter.c
index d3eb584..f49d5a9 100644
--- a/platform/mipi_csi/mipi_v4l2_adapter.c
+++ b/platform/mipi_csi/mipi_v4l2_adapter.c
@@ -19,6 +19,7 @@
 #include <asm/unaligned.h>
 #include <linux/acpi.h>
 #include <linux/i2c.h>
+#include <linux/slab.h>
 #include <linux/module.h>
 #include <media/v4l2-ctrls.h>
 #include <media/v4l2-device.h>
@@ -254,11 +255,17 @@ static int LinuxInitControls(struct AdapterDrvData *drvData)
     ImgRect *rect = &(drvData->attr->imgRect);
 
     if (ctrl_hdlr == NULL) {
+        ctrl_hdlr = kzalloc(sizeof(*ctrl_hdlr), GFP_KERNEL);
+        if (!ctrl_hdlr) {
+            HDF_LOGE("%s: [kzalloc] failed.", __func__);
+            return -ENOMEM;
+        }
         ret = v4l2_ctrl_handler_init(ctrl_hdlr, CTRLS_COUNT);
         if (ret) {
             HDF_LOGE("%s: [v4l2_ctrl_handler_init] failed.", __func__);
             return ret;
         }
+        camera->ctrl_handler = ctrl_hdlr;
     }
     ctrl_hdlr->lock = &drvData->mutex;
     if (camera->link_freq == NULL) {
-- 
Gitee