From: Marek Szyprowski <m.szyprowski@samsung.com>
Date: Mon, 4 Nov 2024 15:23:33 +0000 (+0100)
Subject: gpu: drm: img: fix potential NULL pointer dereference
X-Git-Tag: accepted/tizen/unified/x/20241106.131212~2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=7eb352a67dbff0b2589617ef12f05d05ceb0058a;p=platform%2Fkernel%2Flinux-thead.git

gpu: drm: img: fix potential NULL pointer dereference

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Change-Id: I519c2289c9659deab1e348ef88ab05668eb9c8f7
---

diff --git a/drivers/gpu/drm/img-rogue/module_common.c b/drivers/gpu/drm/img-rogue/module_common.c
index aa7ace0dabd1..76d0dac52e34 100644
--- a/drivers/gpu/drm/img-rogue/module_common.c
+++ b/drivers/gpu/drm/img-rogue/module_common.c
@@ -158,13 +158,18 @@ CONNECTION_DATA *LinuxSyncConnectionFromFile(struct file *pFile)
 	if (pFile)
 	{
 		struct drm_file *psDRMFile = pFile->private_data;
-		PVRSRV_CONNECTION_PRIV *psConnectionPriv = (PVRSRV_CONNECTION_PRIV*)psDRMFile->driver_priv;
 
+		if (psDRMFile) {
+			PVRSRV_CONNECTION_PRIV *psConnectionPriv = (PVRSRV_CONNECTION_PRIV*)psDRMFile->driver_priv;
+
+			if (psConnectionPriv) {
 #if (PVRSRV_DEVICE_INIT_MODE == PVRSRV_LINUX_DEV_INIT_ON_CONNECT)
-		return (CONNECTION_DATA*)psConnectionPriv->pvConnectionData;
+				return (CONNECTION_DATA*)psConnectionPriv->pvConnectionData;
 #else
-		return (CONNECTION_DATA*)psConnectionPriv->pvSyncConnectionData;
+				return (CONNECTION_DATA*)psConnectionPriv->pvSyncConnectionData;
 #endif
+			}
+		}
 	}
 
 	return NULL;