[PATCH 5.12 173/242] drm/amd/display: fix incorrrect valid irq check

Greg Kroah-Hartman
2021-07-15T19:17:58Z

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

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>

---
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
@@ -164,7 +164,7 @@ 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 \