UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

platform/x86: samsung-laptop: 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: Corentin Chary <corentin.chary@gmail.com>
Cc: Darren Hart <dvhart@infradead.org>
Cc: Andy Shevchenko <andy@infradead.org>
Cc: platform-driver-x86@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
This commit is contained in:
Greg Kroah-Hartman 2019-06-12 14:12:55 +02:00 committed by Andy Shevchenko
parent 17f1bf38c8
commit d30cdc9a8a
1 changed files with 23 additions and 66 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

89
drivers/platform/x86/samsung-laptop.c
View File

@ -1280,15 +1280,12 @@ static void samsung_debugfs_exit(struct samsung_laptop *samsung)
debugfs_remove_recursive(samsung->debug.root);
}
static int samsung_debugfs_init(struct samsung_laptop *samsung)
static void samsung_debugfs_init(struct samsung_laptop *samsung)
{
struct dentry *dent;
struct dentry *root;
samsung->debug.root = debugfs_create_dir("samsung-laptop", NULL);
if (!samsung->debug.root) {
pr_err("failed to create debugfs directory");
goto error_debugfs;
}
root = debugfs_create_dir("samsung-laptop", NULL);
samsung->debug.root = root;
samsung->debug.f0000_wrapper.data = samsung->f0000_segment;
samsung->debug.f0000_wrapper.size = 0xffff;
@ -1299,60 +1296,24 @@ static int samsung_debugfs_init(struct samsung_laptop *samsung)
samsung->debug.sdiag_wrapper.data = samsung->sdiag;
samsung->debug.sdiag_wrapper.size = strlen(samsung->sdiag);
dent = debugfs_create_u16("command", S_IRUGO | S_IWUSR,
samsung->debug.root, &samsung->debug.command);
if (!dent)
goto error_debugfs;
dent = debugfs_create_u32("d0", S_IRUGO | S_IWUSR, samsung->debug.root,
&samsung->debug.data.d0);
if (!dent)
goto error_debugfs;
dent = debugfs_create_u32("d1", S_IRUGO | S_IWUSR, samsung->debug.root,
&samsung->debug.data.d1);
if (!dent)
goto error_debugfs;
dent = debugfs_create_u16("d2", S_IRUGO | S_IWUSR, samsung->debug.root,
&samsung->debug.data.d2);
if (!dent)
goto error_debugfs;
dent = debugfs_create_u8("d3", S_IRUGO | S_IWUSR, samsung->debug.root,
&samsung->debug.data.d3);
if (!dent)
goto error_debugfs;
dent = debugfs_create_blob("data", S_IRUGO | S_IWUSR,
samsung->debug.root,
&samsung->debug.data_wrapper);
if (!dent)
goto error_debugfs;
dent = debugfs_create_blob("f0000_segment", S_IRUSR | S_IWUSR,
samsung->debug.root,
&samsung->debug.f0000_wrapper);
if (!dent)
goto error_debugfs;
dent = debugfs_create_file("call", S_IFREG | S_IRUGO,
samsung->debug.root, samsung,
&samsung_laptop_call_fops);
if (!dent)
goto error_debugfs;
dent = debugfs_create_blob("sdiag", S_IRUGO | S_IWUSR,
samsung->debug.root,
&samsung->debug.sdiag_wrapper);
if (!dent)
goto error_debugfs;
return 0;
error_debugfs:
samsung_debugfs_exit(samsung);
return -ENOMEM;
debugfs_create_u16("command", S_IRUGO | S_IWUSR, root,
&samsung->debug.command);
debugfs_create_u32("d0", S_IRUGO | S_IWUSR, root,
&samsung->debug.data.d0);
debugfs_create_u32("d1", S_IRUGO | S_IWUSR, root,
&samsung->debug.data.d1);
debugfs_create_u16("d2", S_IRUGO | S_IWUSR, root,
&samsung->debug.data.d2);
debugfs_create_u8("d3", S_IRUGO | S_IWUSR, root,
&samsung->debug.data.d3);
debugfs_create_blob("data", S_IRUGO | S_IWUSR, root,
&samsung->debug.data_wrapper);
debugfs_create_blob("f0000_segment", S_IRUSR | S_IWUSR, root,
&samsung->debug.f0000_wrapper);
debugfs_create_file("call", S_IFREG | S_IRUGO, root, samsung,
&samsung_laptop_call_fops);
debugfs_create_blob("sdiag", S_IRUGO | S_IWUSR, root,
&samsung->debug.sdiag_wrapper);
}
static void samsung_sabi_exit(struct samsung_laptop *samsung)
@ -1745,9 +1706,7 @@ static int __init samsung_init(void)
if (ret)
goto error_lid_handling;
ret = samsung_debugfs_init(samsung);
if (ret)
goto error_debugfs;
samsung_debugfs_init(samsung);
samsung->pm_nb.notifier_call = samsung_pm_notification;
register_pm_notifier(&samsung->pm_nb);
@ -1755,8 +1714,6 @@ static int __init samsung_init(void)
samsung_platform_device = samsung->platform_device;
return ret;
error_debugfs:
samsung_lid_handling_exit(samsung);
error_lid_handling:
samsung_leds_exit(samsung);
error_leds: