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| author |   Dan Carpenter <dan.carpenter@oracle.com> | 2018-07-04 12:46:15 +0300 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2018-07-05 16:40:02 -0500 |
| commit | 5d908944c5ba4fc8d301e1332635c64c1b77d843 (patch) | |
| tree | 1a778aa2cccf6e55c50e7957251129777a894cbd /drivers/gpu/drm/amd/display/dc/irq/irq_service.c | |
| parent | drm/amd/pp: Remove the same struct define in powerplay (diff) | |
| download | linux-dev-5d908944c5ba4fc8d301e1332635c64c1b77d843.tar.xz linux-dev-5d908944c5ba4fc8d301e1332635c64c1b77d843.zip | |
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: 4562236b3bc0 ("drm/amd/dc: Add dc display driver (v2)")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/irq/irq_service.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/irq/irq_service.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/irq/irq_service.c b/drivers/gpu/drm/amd/display/dc/irq/irq_service.c index dcdfa0f01551..604bea01fc13 100644 --- a/drivers/gpu/drm/amd/display/dc/irq/irq_service.c +++ b/drivers/gpu/drm/amd/display/dc/irq/irq_service.c @@ -78,7 +78,7 @@ const struct irq_source_info *find_irq_source_info( struct irq_service *irq_service, 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 &irq_service->info[source]; |