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 2e551e2..62dd667 100644 (file)
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -151,8 +151,7 @@ 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;