From: Jack Wang <jinpu.wang@ionos.com>
To: jassisinghbrar@gmail.com
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH] mailbox: bcm-ferxrm-mailbox: Fix error check for dma_map_sg
Date: Fri, 26 Aug 2022 12:13:35 +0200 [thread overview]
Message-ID: <20220826101335.78779-1-jinpu.wang@ionos.com> (raw)
dma_map_sg return 0 on error, fix the error check, and return -EIO
to caller.
Cc: Jassi Brar <jassisinghbrar@gmail.com>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
---
drivers/mailbox/bcm-flexrm-mailbox.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/mailbox/bcm-flexrm-mailbox.c b/drivers/mailbox/bcm-flexrm-mailbox.c
index fda16f76401e..bf6e86b0ed09 100644
--- a/drivers/mailbox/bcm-flexrm-mailbox.c
+++ b/drivers/mailbox/bcm-flexrm-mailbox.c
@@ -622,15 +622,15 @@ 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;
--
2.34.1
reply other threads:[~2022-08-26 10:13 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20220826101335.78779-1-jinpu.wang@ionos.com \
--to=jinpu.wang@ionos.com \
--cc=jassisinghbrar@gmail.com \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).