From: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Date: Wed, 29 Aug 2018 21:29:21 +0000 (+0200)
Subject: dma-mapping: fix return type of dma_set_max_seg_size()
X-Git-Tag: v4.19.89~143
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=0c40b942f6a99f2ade4d43ed5186bbba1c88d9f6;p=thirdparty%2Fkernel%2Fstable.git

dma-mapping: fix return type of dma_set_max_seg_size()

[ Upstream commit c9d76d0655c06b8c1f944e46c4fd9e9cf4b331c0 ]

The function dma_set_max_seg_size() can return either 0 on success or
-EIO on error. Change its return type from unsigned int to int to
capture this.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 1db6a6b46d0d3..669cde2fa8723 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -674,8 +674,7 @@ static inline unsigned int dma_get_max_seg_size(struct device *dev)
 	return SZ_64K;
 }
 
-static inline unsigned int dma_set_max_seg_size(struct device *dev,
-						unsigned int size)
+static inline int dma_set_max_seg_size(struct device *dev, unsigned int size)
 {
 	if (dev->dma_parms) {
 		dev->dma_parms->max_segment_size = size;