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Diffstat (limited to 'target/linux/brcm2708/patches-4.19/950-0727-Fixup-FKMS-interrupt-handing-for-non-existent-displa.patch')
-rw-r--r--target/linux/brcm2708/patches-4.19/950-0727-Fixup-FKMS-interrupt-handing-for-non-existent-displa.patch39
1 files changed, 0 insertions, 39 deletions
diff --git a/target/linux/brcm2708/patches-4.19/950-0727-Fixup-FKMS-interrupt-handing-for-non-existent-displa.patch b/target/linux/brcm2708/patches-4.19/950-0727-Fixup-FKMS-interrupt-handing-for-non-existent-displa.patch
deleted file mode 100644
index cf29f5b4dc..0000000000
--- a/target/linux/brcm2708/patches-4.19/950-0727-Fixup-FKMS-interrupt-handing-for-non-existent-displa.patch
+++ /dev/null
@@ -1,39 +0,0 @@
-From c2957d7709a43c81e5345d537feaa6980ffcc1a4 Mon Sep 17 00:00:00 2001
-From: James Hughes <james.hughes@raspberrypi.org>
-Date: Mon, 29 Jul 2019 12:02:59 +0100
-Subject: [PATCH 727/806] Fixup FKMS interrupt handing for non-existent display
-
-If an errant interrupt flag was received from a non-existent display,
-a NULL pointer access was made. Protect against this by checking if a
-second display is present prior to checking the interrupt flags.
----
- drivers/gpu/drm/vc4/vc4_firmware_kms.c | 17 ++++++++++-------
- 1 file changed, 10 insertions(+), 7 deletions(-)
-
---- a/drivers/gpu/drm/vc4/vc4_firmware_kms.c
-+++ b/drivers/gpu/drm/vc4/vc4_firmware_kms.c
-@@ -1056,14 +1056,17 @@ static irqreturn_t vc4_crtc_irq_handler(
- vc4_crtc_handle_page_flip(crtc_list[0]);
- }
-
-- /* Check for the secondary display too */
-- chan = readl(crtc_list[0]->regs + SMIDSW1);
-+ if (crtc_list[1]) {
-+ /* Check for the secondary display too */
-+ chan = readl(crtc_list[0]->regs + SMIDSW1);
-
-- if (chan & 1) {
-- writel(SMI_NEW, crtc_list[0]->regs + SMIDSW1);
-- if (crtc_list[1]->vblank_enabled)
-- drm_crtc_handle_vblank(&crtc_list[1]->base);
-- vc4_crtc_handle_page_flip(crtc_list[1]);
-+ if (chan & 1) {
-+ writel(SMI_NEW, crtc_list[0]->regs + SMIDSW1);
-+
-+ if (crtc_list[1]->vblank_enabled)
-+ drm_crtc_handle_vblank(&crtc_list[1]->base);
-+ vc4_crtc_handle_page_flip(crtc_list[1]);
-+ }
- }
- }
-