From 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 22 Oct 2024 10:36:11 +0000
Subject: [PATCH] 修改4g拨号为QMI,需要在系统里后台执行quectel-CM
---
kernel/kernel/fail_function.c | 31 +++++++------------------------
1 files changed, 7 insertions(+), 24 deletions(-)
diff --git a/kernel/kernel/fail_function.c b/kernel/kernel/fail_function.c
index a52151a..8f3795d 100644
--- a/kernel/kernel/fail_function.c
+++ b/kernel/kernel/fail_function.c
@@ -152,29 +152,18 @@
DEFINE_DEBUGFS_ATTRIBUTE(fei_retval_ops, fei_retval_get, fei_retval_set,
"%llx\n");
-static int fei_debugfs_add_attr(struct fei_attr *attr)
+static void fei_debugfs_add_attr(struct fei_attr *attr)
{
struct dentry *dir;
dir = debugfs_create_dir(attr->kp.symbol_name, fei_debugfs_dir);
- if (!dir)
- return -ENOMEM;
- if (!debugfs_create_file("retval", 0600, dir, attr, &fei_retval_ops)) {
- debugfs_remove_recursive(dir);
- return -ENOMEM;
- }
-
- return 0;
+ debugfs_create_file("retval", 0600, dir, attr, &fei_retval_ops);
}
static void fei_debugfs_remove_attr(struct fei_attr *attr)
{
- struct dentry *dir;
-
- dir = debugfs_lookup(attr->kp.symbol_name, fei_debugfs_dir);
- if (dir)
- debugfs_remove_recursive(dir);
+ debugfs_lookup_and_remove(attr->kp.symbol_name, fei_debugfs_dir);
}
static int fei_kprobe_handler(struct kprobe *kp, struct pt_regs *regs)
@@ -211,7 +200,7 @@
{
struct fei_attr *attr = list_entry(v, struct fei_attr, list);
- seq_printf(m, "%pf\n", attr->kp.addr);
+ seq_printf(m, "%ps\n", attr->kp.addr);
return 0;
}
@@ -307,7 +296,7 @@
ret = register_kprobe(&attr->kp);
if (!ret)
- ret = fei_debugfs_add_attr(attr);
+ fei_debugfs_add_attr(attr);
if (ret < 0)
fei_attr_remove(attr);
else {
@@ -339,19 +328,13 @@
return PTR_ERR(dir);
/* injectable attribute is just a symlink of error_inject/list */
- if (!debugfs_create_symlink("injectable", dir,
- "../error_injection/list"))
- goto error;
+ debugfs_create_symlink("injectable", dir, "../error_injection/list");
- if (!debugfs_create_file("inject", 0600, dir, NULL, &fei_ops))
- goto error;
+ debugfs_create_file("inject", 0600, dir, NULL, &fei_ops);
fei_debugfs_dir = dir;
return 0;
-error:
- debugfs_remove_recursive(dir);
- return -ENOMEM;
}
late_initcall(fei_debugfs_init);
--
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