korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-12-03 17:14:14 +08:00
Code Issues Packages Projects Releases Wiki Activity

accel/qaic: Fix NULL pointer deref in qaic_destroy_drm_device()

Browse Source 
If qaic_destroy_drm_device() is called before the device has fully
initialized it will cause a NULL pointer dereference as the drm device
has not yet been created. Fix this with a NULL check.

Fixes: c501ca23a6 ("accel/qaic: Add uapi and core driver file")
Signed-off-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Reviewed-by: Carl Vanderlip <quic_carlv@quicinc.com>
Reviewed-by: Pranjal Ramajor Asha Kanojiya <quic_pkanojiy@quicinc.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230602210440.8411-3-quic_jhugo@quicinc.com
This commit is contained in:
Jeffrey Hugo 2023-06-02 15:04:40 -06:00
parent 3e1b9b2d81
commit 61d8cdb787
1 changed files with 3 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/accel/qaic/qaic_drv.c
View File

@ -225,6 +225,9 @@ static void qaic_destroy_drm_device(struct qaic_device *qdev, s32 partition_id)
struct qaic_user *usr;
qddev = qdev->qddev;
qdev->qddev = NULL;
if (!qddev)
return;
/*
* Existing users get unresolvable errors till they close FDs.