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-rw-r--r--drivers/gpu/drm/drm_edid.c15
1 files changed, 11 insertions, 4 deletions
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 8baa46dc2537..616c1cdc7507 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -1613,7 +1613,8 @@ static const void *edid_extension_block_data(const struct edid *edid, int index)
return edid_block_data(edid, index + 1);
}
-static int drm_edid_block_count(const struct drm_edid *drm_edid)
+/* EDID block count indicated in EDID, may exceed allocated size */
+static int __drm_edid_block_count(const struct drm_edid *drm_edid)
{
int num_blocks;
@@ -1633,12 +1634,18 @@ static int drm_edid_block_count(const struct drm_edid *drm_edid)
num_blocks = eeodb;
}
- /* Limit by allocated size */
- num_blocks = min(num_blocks, (int)drm_edid->size / EDID_LENGTH);
-
return num_blocks;
}
+/* EDID block count, limited by allocated size */
+static int drm_edid_block_count(const struct drm_edid *drm_edid)
+{
+ /* Limit by allocated size */
+ return min(__drm_edid_block_count(drm_edid),
+ (int)drm_edid->size / EDID_LENGTH);
+}
+
+/* EDID extension block count, limited by allocated size */
static int drm_edid_extension_block_count(const struct drm_edid *drm_edid)
{
return drm_edid_block_count(drm_edid) - 1;