linux-kernel - [PATCH] media: verisilicon: Simplify error handling in tile_buffer

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-Id: <20230323131704.414281-1-benjamin.gaignard@collabora.com>
Date:   Thu, 23 Mar 2023 14:17:04 +0100
From:   Benjamin Gaignard <benjamin.gaignard@...labora.com>
To:     ezequiel@...guardiasur.com.ar, p.zabel@...gutronix.de,
        mchehab@...nel.org, elfring@...rs.sourceforge.net
Cc:     linux-media@...r.kernel.org, linux-rockchip@...ts.infradead.org,
        linux-kernel@...r.kernel.org, kernel@...labora.com,
        Benjamin Gaignard <benjamin.gaignard@...labora.com>
Subject: [PATCH] media: verisilicon: Simplify error handling in tile_buffer_reallocate()

Rework allocation errors cases handling to simply it
by removing useless tests.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@...labora.com>
Reported-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 .../media/platform/verisilicon/hantro_hevc.c  | 23 ++++++++-----------
 1 file changed, 9 insertions(+), 14 deletions(-)

diff --git a/drivers/media/platform/verisilicon/hantro_hevc.c b/drivers/media/platform/verisilicon/hantro_hevc.c
index 9383fb7081f6..2c14330bc562 100644
--- a/drivers/media/platform/verisilicon/hantro_hevc.c
+++ b/drivers/media/platform/verisilicon/hantro_hevc.c
@@ -109,7 +109,7 @@ static int tile_buffer_reallocate(struct hantro_ctx *ctx)
 						       &hevc_dec->tile_filter.dma,
 						       GFP_KERNEL);
 	if (!hevc_dec->tile_filter.cpu)
-		goto err_free_tile_buffers;
+		return -ENOMEM;
 	hevc_dec->tile_filter.size = size;
 
 	size = (VERT_SAO_RAM_SIZE * height64 * (num_tile_cols - 1) * ctx->bit_depth) / 8;
@@ -125,31 +125,26 @@ static int tile_buffer_reallocate(struct hantro_ctx *ctx)
 						    &hevc_dec->tile_bsd.dma,
 						    GFP_KERNEL);
 	if (!hevc_dec->tile_bsd.cpu)
-		goto err_free_tile_buffers;
+		goto err_free_sao_buffers;
 	hevc_dec->tile_bsd.size = size;
 
 	hevc_dec->num_tile_cols_allocated = num_tile_cols;
 
 	return 0;
 
-err_free_tile_buffers:
-	if (hevc_dec->tile_filter.cpu)
-		dma_free_coherent(vpu->dev, hevc_dec->tile_filter.size,
-				  hevc_dec->tile_filter.cpu,
-				  hevc_dec->tile_filter.dma);
-	hevc_dec->tile_filter.cpu = NULL;
-
+err_free_sao_buffers:
 	if (hevc_dec->tile_sao.cpu)
 		dma_free_coherent(vpu->dev, hevc_dec->tile_sao.size,
 				  hevc_dec->tile_sao.cpu,
 				  hevc_dec->tile_sao.dma);
 	hevc_dec->tile_sao.cpu = NULL;
 
-	if (hevc_dec->tile_bsd.cpu)
-		dma_free_coherent(vpu->dev, hevc_dec->tile_bsd.size,
-				  hevc_dec->tile_bsd.cpu,
-				  hevc_dec->tile_bsd.dma);
-	hevc_dec->tile_bsd.cpu = NULL;
+err_free_tile_buffers:
+	if (hevc_dec->tile_filter.cpu)
+		dma_free_coherent(vpu->dev, hevc_dec->tile_filter.size,
+				  hevc_dec->tile_filter.cpu,
+				  hevc_dec->tile_filter.dma);
+	hevc_dec->tile_filter.cpu = NULL;
 
 	return -ENOMEM;
 }
-- 
2.34.1