Commit 61d8cdb7 authored by Jeffrey Hugo's avatar Jeffrey Hugo
Browse files

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



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: c501ca23 ("accel/qaic: Add uapi and core driver file")
Signed-off-by: default avatarJeffrey Hugo <quic_jhugo@quicinc.com>
Reviewed-by: default avatarCarl Vanderlip <quic_carlv@quicinc.com>
Reviewed-by: default avatarPranjal Ramajor Asha Kanojiya <quic_pkanojiy@quicinc.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230602210440.8411-3-quic_jhugo@quicinc.com
parent 3e1b9b2d

drivers/accel/qaic/qaic_drv.c

+3 −0
Original line number Diff line number Diff line
@@ -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.