target_linux_rockchip-6.x/patches-6.6/034-57-v6.10-drm-panthor-Fix-NULL-vs-IS_ERR-bug-in-panthor_probe.patch
sbwml ae3c1c2368 rockchip: backport panthor gpu driver
* rk3588

Signed-off-by: sbwml <admin@cooluc.com>
2024-07-07 21:39:51 +08:00

29 lines
1.2 KiB
Diff

From 6e0718f21feda0ed97f932cee39b676817e457f2 Mon Sep 17 00:00:00 2001
From: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
Date: Tue, 2 Apr 2024 03:40:40 -0700
Subject: [PATCH] drm/panthor: Fix NULL vs IS_ERR() bug in panthor_probe()
The devm_drm_dev_alloc() function returns error pointers.
Update the error handling to check for error pointers instead of NULL.
Fixes: 4bdca1150792 ("drm/panthor: Add the driver frontend block")
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240402104041.1689951-1-harshit.m.mogalapalli@oracle.com
---
drivers/gpu/drm/panthor/panthor_drv.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpu/drm/panthor/panthor_drv.c
+++ b/drivers/gpu/drm/panthor/panthor_drv.c
@@ -1399,7 +1399,7 @@ static int panthor_probe(struct platform
ptdev = devm_drm_dev_alloc(&pdev->dev, &panthor_drm_driver,
struct panthor_device, base);
- if (!ptdev)
+ if (IS_ERR(ptdev))
return -ENOMEM;
platform_set_drvdata(pdev, ptdev);