dma-mapping: fix return type of dma_set_max_seg_size()

BugLink: https://bugs.launchpad.net/bugs/1857158
[ 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>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com>

diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 81ed9b2d84dcc78e1b2213e9a22efd0f4f384330..fccf6855e95064fd94670cb1f0f7f0db956ebc60 100644 (file)
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -663,8 +663,7 @@ 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;