commit c9d76d0655c06b8c1f944e46c4fd9e9cf4b331c0
author Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Wed Aug 29 23:29:21 2018 +0200
committer Christoph Hellwig <hch@lst.de> Tue Nov 27 08:39:52 2018 +0100
tree 50f2d400edcc36d6633fb717010c7b4f64588667
parent ef78e5ec9214376c5cb989f5da70b02d0c117b66

dma-mapping: fix return type of dma_set_max_seg_size()

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>

include/linux/dma-mapping.h

diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 15bd414..0f81c71 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -676,8 +676,7 @@
 	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;