linux-kernel - [PATCH 2/3] arm: dma-mapping: fix pointer/integer warning

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Message-Id: <20220721211729.451731-3-ben-linux@fluff.org>
Date:   Thu, 21 Jul 2022 22:17:28 +0100
From:   Ben Dooks <ben-linux@...ff.org>
To:     linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Cc:     linux@...linux.org.uk, Ben Dooks <ben-linux@...ff.org>
Subject: [PATCH 2/3] arm: dma-mapping: fix pointer/integer warning

Fix the use of a pointer assignment from integer where false
is being used instead of NULL. Fix the following warning by
usign NULL:

arch/arm/mm/dma-mapping.c:712:52: warning: Using plain integer as NULL pointer

Signed-off-by: Ben Dooks <ben-linux@...ff.org>
---
 arch/arm/mm/dma-mapping.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index 059cce018570..1483b6a4319d 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -709,7 +709,7 @@ static void *__dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
 
 	*handle = DMA_MAPPING_ERROR;
 	allowblock = gfpflags_allow_blocking(gfp);
-	cma = allowblock ? dev_get_cma_area(dev) : false;
+	cma = allowblock ? dev_get_cma_area(dev) : NULL;
 
 	if (cma)
 		buf->allocator = &cma_allocator;
-- 
2.35.1