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arm_scmi: don't mess with ->d_parent->d_name

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Link: https://lore.kernel.org/r/20250112080705.141166-18-viro@zeniv.linux.org.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Al Viro
2025-01-12 08:07:02 +00:00
committed by Greg Kroah-Hartman
parent f9c8dbc829
commit f22fa721ae
1 changed files with 6 additions and 6 deletions
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12
drivers/firmware/arm_scmi/raw_mode.c
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@@ -886,10 +886,8 @@ static __poll_t scmi_dbg_raw_mode_message_poll(struct file *filp,
static int scmi_dbg_raw_mode_open(struct inode *inode, struct file *filp)
{
u8 id;
struct scmi_raw_mode_info *raw;
struct scmi_dbg_raw_data *rd;
const char *id_str = filp->f_path.dentry->d_parent->d_name.name;
if (!inode->i_private)
return -ENODEV;
@@ -915,8 +913,8 @@ static int scmi_dbg_raw_mode_open(struct inode *inode, struct file *filp)
}
/* Grab channel ID from debugfs entry naming if any */
if (!kstrtou8(id_str, 16, &id))
rd->chan_id = id;
/* not set - reassing 0 we already had after kzalloc() */
rd->chan_id = debugfs_get_aux_num(filp);
rd->raw = raw;
filp->private_data = rd;
@@ -1225,10 +1223,12 @@ void *scmi_raw_mode_init(const struct scmi_handle *handle,
snprintf(cdir, 8, "0x%02X", channels[i]);
chd = debugfs_create_dir(cdir, top_chans);
debugfs_create_file("message", 0600, chd, raw,
debugfs_create_file_aux_num("message", 0600, chd,
raw, channels[i],
&scmi_dbg_raw_mode_message_fops);
debugfs_create_file("message_async", 0600, chd, raw,
debugfs_create_file_aux_num("message_async", 0600, chd,
raw, channels[i],
&scmi_dbg_raw_mode_message_async_fops);
}
}