[PATCH] drm/komeda: Fix bit check to import to value of proper type

[carsten.haitzler at foss.arm.com]

From: Carsten Haitzler <carsten.haitzler at arm.com>

KASAN found this problem. find_first_bit() expects to look at a
pointer pointing to a long, but we look at a u32 - this is going to be
an issue with endianess but, KSAN already flags this as out-of-bounds
stack reads. This fixes it by just importing inot a local long.

Signed-off-by: Carsten Haitzler <carsten.haitzler at arm.com>
---
 drivers/gpu/drm/arm/display/komeda/komeda_pipeline.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_pipeline.c b/drivers/gpu/drm/arm/display/komeda/komeda_pipeline.c
index 452e505a1fd3..719a79728e24 100644
--- a/drivers/gpu/drm/arm/display/komeda/komeda_pipeline.c
+++ b/drivers/gpu/drm/arm/display/komeda/komeda_pipeline.c
@@ -137,9 +137,10 @@ komeda_pipeline_get_first_component(struct komeda_pipeline *pipe,
 				    u32 comp_mask)
 {
 	struct komeda_component *c = NULL;
+	unsigned long comp_mask_local = (unsigned long)comp_mask;
 	int id;
 
-	id = find_first_bit((unsigned long *)&comp_mask, 32);
+	id = find_first_bit(&comp_mask_local, 32);
 	if (id < 32)
 		c = komeda_pipeline_get_component(pipe, id);
 
-- 
2.29.2