Commit 5d908944 authored by Dan Carpenter's avatar Dan Carpenter Committed by Alex Deucher

drm/amd/display: off by one in find_irq_source_info()

The ->info[] array has DAL_IRQ_SOURCES_NUMBER elements so this condition
should be >= instead of > or we could read one element beyond the end of
the array.

Fixes: 4562236b ("drm/amd/dc: Add dc display driver (v2)")
Signed-off-by: default avatarDan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: default avatarHarry Wentland <harry.wentland@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 20582319
...@@ -78,7 +78,7 @@ const struct irq_source_info *find_irq_source_info( ...@@ -78,7 +78,7 @@ const struct irq_source_info *find_irq_source_info(
struct irq_service *irq_service, struct irq_service *irq_service,
enum dc_irq_source source) enum dc_irq_source source)
{ {
if (source > DAL_IRQ_SOURCES_NUMBER || source < DC_IRQ_SOURCE_INVALID) if (source >= DAL_IRQ_SOURCES_NUMBER || source < DC_IRQ_SOURCE_INVALID)
return NULL; return NULL;
return &irq_service->info[source]; return &irq_service->info[source];
......
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