From: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Date: Thu, 16 May 2019 14:55:43 +0000 (+0200)
Subject: drm/vc4: Check for the binner bo before handling OOM interrupt
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=e43fe02fe4fde417b40f6e70b56a30190edabb2e;p=linux.git

drm/vc4: Check for the binner bo before handling OOM interrupt

Since the OOM interrupt directly deals with the binner bo, it doesn't
make sense to try and handle it without a binner buffer registered.

Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20190516145544.29051-4-paul.kocialkowski@bootlin.com
---

diff --git a/drivers/gpu/drm/vc4/vc4_irq.c b/drivers/gpu/drm/vc4/vc4_irq.c
index ffd0a4388752e..723dc86b4511c 100644
--- a/drivers/gpu/drm/vc4/vc4_irq.c
+++ b/drivers/gpu/drm/vc4/vc4_irq.c
@@ -64,6 +64,9 @@ vc4_overflow_mem_work(struct work_struct *work)
 	struct vc4_exec_info *exec;
 	unsigned long irqflags;
 
+	if (!bo)
+		return;
+
 	bin_bo_slot = vc4_v3d_get_bin_slot(vc4);
 	if (bin_bo_slot < 0) {
 		DRM_ERROR("Couldn't allocate binner overflow mem\n");