From: Guchun Chen <guchun.chen@amd.com>
Date: Mon, 28 Jun 2021 09:03:48 +0000 (+0800)
Subject: drm/amd/display: fix incorrrect valid irq check
X-Git-Tag: v4.19.198~134
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=39f93baead1e8af115b4be180031162d09f77e32;p=users%2Fdwmw2%2Flinux.git

drm/amd/display: fix incorrrect valid irq check

commit e38ca7e422791a4d1c01e56dbf7f9982db0ed365 upstream.

valid DAL irq should be < DAL_IRQ_SOURCES_NUMBER.

Signed-off-by: Guchun Chen <guchun.chen@amd.com>
Reviewed-and-tested-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/gpu/drm/amd/display/dc/irq_types.h b/drivers/gpu/drm/amd/display/dc/irq_types.h
index 0b5f3a278c227..24c38dac597ba 100644
--- a/drivers/gpu/drm/amd/display/dc/irq_types.h
+++ b/drivers/gpu/drm/amd/display/dc/irq_types.h
@@ -155,7 +155,7 @@ enum irq_type
 };
 
 #define DAL_VALID_IRQ_SRC_NUM(src) \
-	((src) <= DAL_IRQ_SOURCES_NUMBER && (src) > DC_IRQ_SOURCE_INVALID)
+	((src) < DAL_IRQ_SOURCES_NUMBER && (src) > DC_IRQ_SOURCE_INVALID)
 
 /* Number of Page Flip IRQ Sources. */
 #define DAL_PFLIP_IRQ_SRC_NUM \