4.2-stable review patch. If anyone has any objections, please let me know.
------------------
From: Dan Carpenter <dan.carpen...@oracle.com>
commit a4a9a8cb3248b3b48a6049acaeaf23d4ad3712b9 upstream.
The dma_mapping_error() function returns true if there is an error, it
doesn't return an error code. We should return -ENOMEM.
Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>
Reviewed-by: Axel Lin <axel....@ingics.com>
Signed-off-by: Wolfram Sang <w...@the-dreams.de>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
drivers/i2c/busses/i2c-xgene-slimpro.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
--- a/drivers/i2c/busses/i2c-xgene-slimpro.c
+++ b/drivers/i2c/busses/i2c-xgene-slimpro.c
@@ -198,10 +198,10 @@ static int slimpro_i2c_blkrd(struct slim
int rc;
paddr = dma_map_single(ctx->dev, ctx->dma_buffer, readlen,
DMA_FROM_DEVICE);
- rc = dma_mapping_error(ctx->dev, paddr);
- if (rc) {
+ if (dma_mapping_error(ctx->dev, paddr)) {
dev_err(&ctx->adapter.dev, "Error in mapping dma buffer %p\n",
ctx->dma_buffer);
+ rc = -ENOMEM;
goto err;
}
@@ -241,10 +241,10 @@ static int slimpro_i2c_blkwr(struct slim
memcpy(ctx->dma_buffer, data, writelen);
paddr = dma_map_single(ctx->dev, ctx->dma_buffer, writelen,
DMA_TO_DEVICE);
- rc = dma_mapping_error(ctx->dev, paddr);
- if (rc) {
+ if (dma_mapping_error(ctx->dev, paddr)) {
dev_err(&ctx->adapter.dev, "Error in mapping dma buffer %p\n",
ctx->dma_buffer);
+ rc = -ENOMEM;
goto err;
}
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