linux-kernel - [PATCH 4.19 287/421] drm/amd/display: fix incorrrect valid irq check

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Date:   Mon, 19 Jul 2021 16:51:38 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Guchun Chen <guchun.chen@....com>,
        Harry Wentland <harry.wentland@....com>,
        Alex Deucher <alexander.deucher@....com>,
        Evan Quan <evan.quan@....com>
Subject: [PATCH 4.19 287/421] drm/amd/display: fix incorrrect valid irq check

From: Guchun Chen <guchun.chen@....com>

commit e38ca7e422791a4d1c01e56dbf7f9982db0ed365 upstream.

valid DAL irq should be < DAL_IRQ_SOURCES_NUMBER.

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

---
 drivers/gpu/drm/amd/display/dc/irq_types.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- 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 \