From d30cdc9a8adb1d18a2eed47dceaa2998adf5f47d Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Wed, 12 Jun 2019 14:12:55 +0200 Subject: 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 Cc: Darren Hart Cc: Andy Shevchenko Cc: platform-driver-x86@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Greg Kroah-Hartman Signed-off-by: Andy Shevchenko --- drivers/platform/x86/samsung-laptop.c | 89 +++++++++-------------------------- 1 file changed, 23 insertions(+), 66 deletions(-) (limited to 'drivers/platform/x86/samsung-laptop.c') diff --git a/drivers/platform/x86/samsung-laptop.c b/drivers/platform/x86/samsung-laptop.c index 7b160ee98115..e84f11398c1b 100644 --- a/drivers/platform/x86/samsung-laptop.c +++ b/drivers/platform/x86/samsung-laptop.c @@ -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: -- cgit v1.2.3