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crypto: hisilicon - no need to check return value of debugfs_create functions 

When calling debugfs functions, there is no need to ever check the
return value.  The function can work or not, but the code logic should
never do something different based on this.

Cc: Zhou Wang <wangzhou1@hisilicon.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: linux-crypto@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Greg Kroah-Hartman 2019-11-07 09:52:00 +01:00 committed by Herbert Xu
parent 39977f4b51
commit 4a97bfc796
2 changed files with 11 additions and 32 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
drivers/crypto/hisilicon/qm.c
View File

@ -970,13 +970,11 @@ static const struct file_operations qm_regs_fops = {
static int qm_create_debugfs_file(struct hisi_qm *qm, enum qm_debug_file index)
{
struct dentry *qm_d = qm->debug.qm_d, *tmp;
struct dentry *qm_d = qm->debug.qm_d;
struct debugfs_file *file = qm->debug.files + index;
tmp = debugfs_create_file(qm_debug_file_name[index], 0600, qm_d, file,
debugfs_create_file(qm_debug_file_name[index], 0600, qm_d, file,
&qm_debug_fops);
if (IS_ERR(tmp))
return -ENOENT;
file->index = index;
mutex_init(&file->lock);
@ -1805,12 +1803,10 @@ EXPORT_SYMBOL_GPL(hisi_qm_stop);
*/
int hisi_qm_debug_init(struct hisi_qm *qm)
{
struct dentry *qm_d, *qm_regs;
struct dentry *qm_d;
int i, ret;
qm_d = debugfs_create_dir("qm", qm->debug.debug_root);
if (IS_ERR(qm_d))
return -ENOENT;
qm->debug.qm_d = qm_d;
/* only show this in PF */
@ -1821,12 +1817,7 @@ int hisi_qm_debug_init(struct hisi_qm *qm)
goto failed_to_create;
}
qm_regs = debugfs_create_file("qm_regs", 0444, qm->debug.qm_d, qm,
&qm_regs_fops);
if (IS_ERR(qm_regs)) {
ret = -ENOENT;
goto failed_to_create;
}
debugfs_create_file("qm_regs", 0444, qm->debug.qm_d, qm, &qm_regs_fops);
return 0;

20
drivers/crypto/hisilicon/zip/zip_main.c
View File

@ -547,7 +547,7 @@ static int hisi_zip_core_debug_init(struct hisi_zip_ctrl *ctrl)
struct hisi_qm *qm = &hisi_zip->qm;
struct device *dev = &qm->pdev->dev;
struct debugfs_regset32 *regset;
struct dentry *tmp_d, *tmp;
struct dentry *tmp_d;
char buf[HZIP_BUF_SIZE];
int i;
@ -557,10 +557,6 @@ static int hisi_zip_core_debug_init(struct hisi_zip_ctrl *ctrl)
else
sprintf(buf, "decomp_core%d", i - HZIP_COMP_CORE_NUM);
tmp_d = debugfs_create_dir(buf, ctrl->debug_root);
if (!tmp_d)
return -ENOENT;
regset = devm_kzalloc(dev, sizeof(*regset), GFP_KERNEL);
if (!regset)
return -ENOENT;
@ -569,9 +565,8 @@ static int hisi_zip_core_debug_init(struct hisi_zip_ctrl *ctrl)
regset->nregs = ARRAY_SIZE(hzip_dfx_regs);
regset->base = qm->io_base + core_offsets[i];
tmp = debugfs_create_regset32("regs", 0444, tmp_d, regset);
if (!tmp)
return -ENOENT;
tmp_d = debugfs_create_dir(buf, ctrl->debug_root);
debugfs_create_regset32("regs", 0444, tmp_d, regset);
}
return 0;
@ -579,7 +574,6 @@ static int hisi_zip_core_debug_init(struct hisi_zip_ctrl *ctrl)
static int hisi_zip_ctrl_debug_init(struct hisi_zip_ctrl *ctrl)
{
struct dentry *tmp;
int i;
for (i = HZIP_CURRENT_QM; i < HZIP_DEBUG_FILE_NUM; i++) {
@ -587,11 +581,9 @@ static int hisi_zip_ctrl_debug_init(struct hisi_zip_ctrl *ctrl)
ctrl->files[i].ctrl = ctrl;
ctrl->files[i].index = i;
tmp = debugfs_create_file(ctrl_debug_file_name[i], 0600,
debugfs_create_file(ctrl_debug_file_name[i], 0600,
ctrl->debug_root, ctrl->files + i,
&ctrl_debug_fops);
if (!tmp)
return -ENOENT;
}
return hisi_zip_core_debug_init(ctrl);
@ -605,8 +597,6 @@ static int hisi_zip_debugfs_init(struct hisi_zip *hisi_zip)
int ret;
dev_d = debugfs_create_dir(dev_name(dev), hzip_debugfs_root);
if (!dev_d)
return -ENOENT;
qm->debug.debug_root = dev_d;
ret = hisi_qm_debug_init(qm);
@ -1001,8 +991,6 @@ static void hisi_zip_register_debugfs(void)
return;
hzip_debugfs_root = debugfs_create_dir("hisi_zip", NULL);
if (IS_ERR_OR_NULL(hzip_debugfs_root))
hzip_debugfs_root = NULL;
}
static void hisi_zip_unregister_debugfs(void)