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| author | Jack Wang <jinpu.wang@ionos.com> | 2022-08-26 12:13:35 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-10-26 13:19:34 +0200 |
| commit | 83d4f013c17471085a13f8ffba3585f149d395d4 (patch) | |
| tree | 33572f5b334445ea0b83bff50053a944841422cb /drivers/mailbox | |
| parent | 25fe7b0d596b343e7a5504ba11767115fff8494f (diff) | |
| download | linux-stable-83d4f013c17471085a13f8ffba3585f149d395d4.tar.gz linux-stable-83d4f013c17471085a13f8ffba3585f149d395d4.tar.bz2 linux-stable-83d4f013c17471085a13f8ffba3585f149d395d4.zip | |
mailbox: bcm-ferxrm-mailbox: Fix error check for dma_map_sg
[ Upstream commit 6b207ce8a96a71e966831e3a13c38143ba9a73c1 ]
dma_map_sg return 0 on error, fix the error check, and return -EIO
to caller.
Fixes: dbc049eee730 ("mailbox: Add driver for Broadcom FlexRM ring manager")
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/mailbox')
| -rw-r--r-- | drivers/mailbox/bcm-flexrm-mailbox.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/mailbox/bcm-flexrm-mailbox.c b/drivers/mailbox/bcm-flexrm-mailbox.c index 96bcabfebc23..543c4a4a8fca 100644 --- a/drivers/mailbox/bcm-flexrm-mailbox.c +++ b/drivers/mailbox/bcm-flexrm-mailbox.c @@ -634,15 +634,15 @@ static int flexrm_spu_dma_map(struct device *dev, struct brcm_message *msg) rc = dma_map_sg(dev, msg->spu.src, sg_nents(msg->spu.src), DMA_TO_DEVICE); - if (rc < 0) - return rc; + if (!rc) + return -EIO; rc = dma_map_sg(dev, msg->spu.dst, sg_nents(msg->spu.dst), DMA_FROM_DEVICE); - if (rc < 0) { + if (!rc) { dma_unmap_sg(dev, msg->spu.src, sg_nents(msg->spu.src), DMA_TO_DEVICE); - return rc; + return -EIO; } return 0; |