From: Jon Hunter <jonathanh@nvidia.com>
To: Thierry Reding <thierry.reding@gmail.com>
Cc: <linux-tegra@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
Jon Hunter <jonathanh@nvidia.com>
Subject: [PATCH 2/5] firmware: tegra: Use consistent return variable name
Date: Sun, 12 Jul 2020 11:01:15 +0100 [thread overview]
Message-ID: <20200712100118.13343-3-jonathanh@nvidia.com> (raw)
In-Reply-To: <20200712100118.13343-1-jonathanh@nvidia.com>
Most functions in the BPMP driver use 'err' as the return variable
name but there are a few places that use 'ret'. Let's use 'err' to
be consistent.
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
---
drivers/firmware/tegra/bpmp-debugfs.c | 36 +++++++++++++--------------
drivers/firmware/tegra/bpmp.c | 6 ++---
2 files changed, 21 insertions(+), 21 deletions(-)
diff --git a/drivers/firmware/tegra/bpmp-debugfs.c b/drivers/firmware/tegra/bpmp-debugfs.c
index 08e0f05f46c6..f7bf19248d15 100644
--- a/drivers/firmware/tegra/bpmp-debugfs.c
+++ b/drivers/firmware/tegra/bpmp-debugfs.c
@@ -206,7 +206,7 @@ static int debugfs_show(struct seq_file *m, void *p)
char buf[256];
const char *filename;
size_t len, nbytes;
- int ret;
+ int err;
filename = get_filename(bpmp, file, buf, sizeof(buf));
if (!filename)
@@ -220,24 +220,24 @@ static int debugfs_show(struct seq_file *m, void *p)
datavirt = dma_alloc_coherent(bpmp->dev, datasize, &dataphys,
GFP_KERNEL | GFP_DMA32);
if (!datavirt) {
- ret = -ENOMEM;
+ err = -ENOMEM;
goto free_namebuf;
}
len = strlen(filename);
strncpy(namevirt, filename, namesize);
- ret = mrq_debugfs_read(bpmp, namephys, len, dataphys, datasize,
+ err = mrq_debugfs_read(bpmp, namephys, len, dataphys, datasize,
&nbytes);
- if (!ret)
+ if (!err)
seq_write(m, datavirt, nbytes);
dma_free_coherent(bpmp->dev, datasize, datavirt, dataphys);
free_namebuf:
dma_free_coherent(bpmp->dev, namesize, namevirt, namephys);
- return ret;
+ return err;
}
static int debugfs_open(struct inode *inode, struct file *file)
@@ -257,7 +257,7 @@ static ssize_t debugfs_store(struct file *file, const char __user *buf,
char fnamebuf[256];
const char *filename;
size_t len;
- int ret;
+ int err;
filename = get_filename(bpmp, file, fnamebuf, sizeof(fnamebuf));
if (!filename)
@@ -271,7 +271,7 @@ static ssize_t debugfs_store(struct file *file, const char __user *buf,
datavirt = dma_alloc_coherent(bpmp->dev, datasize, &dataphys,
GFP_KERNEL | GFP_DMA32);
if (!datavirt) {
- ret = -ENOMEM;
+ err = -ENOMEM;
goto free_namebuf;
}
@@ -279,11 +279,11 @@ static ssize_t debugfs_store(struct file *file, const char __user *buf,
strncpy(namevirt, filename, namesize);
if (copy_from_user(datavirt, buf, count)) {
- ret = -EFAULT;
+ err = -EFAULT;
goto free_databuf;
}
- ret = mrq_debugfs_write(bpmp, namephys, len, dataphys,
+ err = mrq_debugfs_write(bpmp, namephys, len, dataphys,
count);
free_databuf:
@@ -291,7 +291,7 @@ static ssize_t debugfs_store(struct file *file, const char __user *buf,
free_namebuf:
dma_free_coherent(bpmp->dev, namesize, namevirt, namephys);
- return ret ?: count;
+ return err ?: count;
}
static const struct file_operations debugfs_fops = {
@@ -380,8 +380,8 @@ int tegra_bpmp_init_debugfs(struct tegra_bpmp *bpmp)
void *virt;
const size_t sz = SZ_512K;
size_t nbytes;
- int ret;
struct dentry *root;
+ int err;
if (!tegra_bpmp_mrq_is_supported(bpmp, MRQ_DEBUGFS))
return 0;
@@ -393,24 +393,24 @@ int tegra_bpmp_init_debugfs(struct tegra_bpmp *bpmp)
virt = dma_alloc_coherent(bpmp->dev, sz, &phys,
GFP_KERNEL | GFP_DMA32);
if (!virt) {
- ret = -ENOMEM;
+ err = -ENOMEM;
goto out;
}
- ret = mrq_debugfs_dumpdir(bpmp, phys, sz, &nbytes);
- if (ret < 0) {
+ err = mrq_debugfs_dumpdir(bpmp, phys, sz, &nbytes);
+ if (err < 0) {
goto free;
} else if (nbytes > sz) {
- ret = -EINVAL;
+ err = -EINVAL;
goto free;
}
- ret = create_debugfs_mirror(bpmp, virt, nbytes, root);
+ err = create_debugfs_mirror(bpmp, virt, nbytes, root);
free:
dma_free_coherent(bpmp->dev, sz, virt, phys);
out:
- if (ret < 0)
+ if (err < 0)
debugfs_remove(root);
- return ret;
+ return err;
}
diff --git a/drivers/firmware/tegra/bpmp.c b/drivers/firmware/tegra/bpmp.c
index fe6702df24bf..4d93d8925e14 100644
--- a/drivers/firmware/tegra/bpmp.c
+++ b/drivers/firmware/tegra/bpmp.c
@@ -515,10 +515,10 @@ bool tegra_bpmp_mrq_is_supported(struct tegra_bpmp *bpmp, unsigned int mrq)
.size = sizeof(resp),
},
};
- int ret;
+ int err;
- ret = tegra_bpmp_transfer(bpmp, &msg);
- if (ret || msg.rx.ret)
+ err = tegra_bpmp_transfer(bpmp, &msg);
+ if (err || msg.rx.ret)
return false;
return resp.status == 0;
--
2.17.1
next prev parent reply other threads:[~2020-07-12 10:01 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-12 10:01 [PATCH 0/5] firmware: tegra: Add support for in-band debug Jon Hunter
2020-07-12 10:01 ` [PATCH 1/5] firmware: tegra: add return code checks and increase debugfs size Jon Hunter
2020-07-12 10:01 ` Jon Hunter [this message]
2020-07-12 10:01 ` [PATCH 3/5] firmware: tegra: Prepare for supporting in-band debugfs Jon Hunter
2020-07-12 10:01 ` [PATCH 4/5] firmware: tegra: Add support for in-band debug Jon Hunter
2020-07-12 10:01 ` [PATCH 5/5] firmware: tegra: Update BPMP ABI Jon Hunter
2020-07-14 16:18 ` [PATCH 0/5] firmware: tegra: Add support for in-band debug Thierry Reding
2020-07-14 18:12 ` Jon Hunter
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=20200712100118.13343-3-jonathanh@nvidia.com \
--to=jonathanh@nvidia.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-tegra@vger.kernel.org \
--cc=thierry.reding@gmail.com \
/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).