[lvc-project] [PATCH] drm/amd/display: Remove unused-but-set variable hubp from

[Markov Gleb]

From: Gleb Markov <markov.gi at npc-ksb.ru>

The final check of hubp for NULL covers all remaining lines of code, since
the value of hubp does not change until the end of the method.

This check is redundant because hubp1 is already dereferenced within the
macro.
If it were NULL, the program would have already failed to proceed.

Remove the left part of the expression with the logical "&&".

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: be1fb44389ca ("drm/amd/display: Check null pointers before used").
Signed-off-by: Gleb Markov <markov.gi at npc-ksb.ru>
---
 drivers/gpu/drm/amd/display/dc/hubp/dcn10/dcn10_hubp.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/hubp/dcn10/dcn10_hubp.c b/drivers/gpu/drm/amd/display/dc/hubp/dcn10/dcn10_hubp.c
index 7c97a774141f..d8eb5996b577 100644
--- a/drivers/gpu/drm/amd/display/dc/hubp/dcn10/dcn10_hubp.c
+++ b/drivers/gpu/drm/amd/display/dc/hubp/dcn10/dcn10_hubp.c
@@ -772,8 +772,7 @@ bool hubp1_is_flip_pending(struct hubp *hubp)
 	if (flip_pending)
 		return true;
 
-	if (hubp &&
-	    earliest_inuse_address.grph.addr.quad_part != hubp->request_address.grph.addr.quad_part)
+	if (earliest_inuse_address.grph.addr.quad_part != hubp->request_address.grph.addr.quad_part)
 		return true;
 
 	return false;
-- 
2.43.0