linux-kernel - [PATCH] drm/panthor: Fix a couple -ENOMEM error codes

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Date: Tue, 2 Apr 2024 12:58:09 +0300
From: Dan Carpenter <dan.carpenter@...aro.org>
To: Boris Brezillon <boris.brezillon@...labora.com>
Cc: Steven Price <steven.price@....com>, Liviu Dudau <liviu.dudau@....com>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>,
	Grant Likely <grant.likely@...aro.org>,
	Heiko Stuebner <heiko@...ech.de>, dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: [PATCH] drm/panthor: Fix a couple -ENOMEM error codes

These error paths forgot to set the error code to -ENOMEM.

Fixes: 647810ec2476 ("drm/panthor: Add the MMU/VM logical block")
Signed-off-by: Dan Carpenter <dan.carpenter@...aro.org>
---
 drivers/gpu/drm/panthor/panthor_mmu.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/panthor/panthor_mmu.c b/drivers/gpu/drm/panthor/panthor_mmu.c
index fdd35249169f..a26b40aab261 100644
--- a/drivers/gpu/drm/panthor/panthor_mmu.c
+++ b/drivers/gpu/drm/panthor/panthor_mmu.c
@@ -1264,8 +1264,10 @@ static int panthor_vm_prepare_map_op_ctx(struct panthor_vm_op_ctx *op_ctx,
 	op_ctx->rsvd_page_tables.pages = kcalloc(pt_count,
 						 sizeof(*op_ctx->rsvd_page_tables.pages),
 						 GFP_KERNEL);
-	if (!op_ctx->rsvd_page_tables.pages)
+	if (!op_ctx->rsvd_page_tables.pages) {
+		ret = -ENOMEM;
 		goto err_cleanup;
+	}
 
 	ret = kmem_cache_alloc_bulk(pt_cache, GFP_KERNEL, pt_count,
 				    op_ctx->rsvd_page_tables.pages);
@@ -1318,8 +1320,10 @@ static int panthor_vm_prepare_unmap_op_ctx(struct panthor_vm_op_ctx *op_ctx,
 		op_ctx->rsvd_page_tables.pages = kcalloc(pt_count,
 							 sizeof(*op_ctx->rsvd_page_tables.pages),
 							 GFP_KERNEL);
-		if (!op_ctx->rsvd_page_tables.pages)
+		if (!op_ctx->rsvd_page_tables.pages) {
+			ret = -ENOMEM;
 			goto err_cleanup;
+		}
 
 		ret = kmem_cache_alloc_bulk(pt_cache, GFP_KERNEL, pt_count,
 					    op_ctx->rsvd_page_tables.pages);
-- 
2.43.0