lkml.org 
[lkml]   [2019]   [Jan]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] rt2x00: no need to check return value of debugfs_create functions
Date
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: Stanislaw Gruszka <sgruszka@redhat.com>
Cc: Helmut Schaa <helmut.schaa@googlemail.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: linux-wireless@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
.../net/wireless/ralink/rt2x00/rt2x00debug.c | 27 -------------------
1 file changed, 27 deletions(-)

diff --git a/drivers/net/wireless/ralink/rt2x00/rt2x00debug.c b/drivers/net/wireless/ralink/rt2x00/rt2x00debug.c
index 61ba573e8bf1..05a2e8da412c 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt2x00debug.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2x00debug.c
@@ -656,36 +656,24 @@ void rt2x00debug_register(struct rt2x00_dev *rt2x00dev)
intf->driver_folder =
debugfs_create_dir(intf->rt2x00dev->ops->name,
rt2x00dev->hw->wiphy->debugfsdir);
- if (IS_ERR(intf->driver_folder) || !intf->driver_folder)
- goto exit;

intf->driver_entry =
rt2x00debug_create_file_driver("driver", intf, &intf->driver_blob);
- if (IS_ERR(intf->driver_entry) || !intf->driver_entry)
- goto exit;

intf->chipset_entry =
rt2x00debug_create_file_chipset("chipset",
intf, &intf->chipset_blob);
- if (IS_ERR(intf->chipset_entry) || !intf->chipset_entry)
- goto exit;

intf->dev_flags = debugfs_create_file("dev_flags", 0400,
intf->driver_folder, intf,
&rt2x00debug_fop_dev_flags);
- if (IS_ERR(intf->dev_flags) || !intf->dev_flags)
- goto exit;

intf->cap_flags = debugfs_create_file("cap_flags", 0400,
intf->driver_folder, intf,
&rt2x00debug_fop_cap_flags);
- if (IS_ERR(intf->cap_flags) || !intf->cap_flags)
- goto exit;

intf->register_folder =
debugfs_create_dir("register", intf->driver_folder);
- if (IS_ERR(intf->register_folder) || !intf->register_folder)
- goto exit;

#define RT2X00DEBUGFS_CREATE_REGISTER_ENTRY(__intf, __name) \
({ \
@@ -695,9 +683,6 @@ void rt2x00debug_register(struct rt2x00_dev *rt2x00dev)
0600, \
(__intf)->register_folder, \
&(__intf)->offset_##__name); \
- if (IS_ERR((__intf)->__name##_off_entry) || \
- !(__intf)->__name##_off_entry) \
- goto exit; \
\
(__intf)->__name##_val_entry = \
debugfs_create_file(__stringify(__name) "_value", \
@@ -705,9 +690,6 @@ void rt2x00debug_register(struct rt2x00_dev *rt2x00dev)
(__intf)->register_folder, \
(__intf), \
&rt2x00debug_fop_##__name); \
- if (IS_ERR((__intf)->__name##_val_entry) || \
- !(__intf)->__name##_val_entry) \
- goto exit; \
} \
})

@@ -721,15 +703,10 @@ void rt2x00debug_register(struct rt2x00_dev *rt2x00dev)

intf->queue_folder =
debugfs_create_dir("queue", intf->driver_folder);
- if (IS_ERR(intf->queue_folder) || !intf->queue_folder)
- goto exit;

intf->queue_frame_dump_entry =
debugfs_create_file("dump", 0400, intf->queue_folder,
intf, &rt2x00debug_fop_queue_dump);
- if (IS_ERR(intf->queue_frame_dump_entry)
- || !intf->queue_frame_dump_entry)
- goto exit;

skb_queue_head_init(&intf->frame_dump_skbqueue);
init_waitqueue_head(&intf->frame_dump_waitqueue);
@@ -747,10 +724,6 @@ void rt2x00debug_register(struct rt2x00_dev *rt2x00dev)
#endif

return;
-
-exit:
- rt2x00debug_deregister(rt2x00dev);
- rt2x00_err(rt2x00dev, "Failed to register debug handler\n");
}

void rt2x00debug_deregister(struct rt2x00_dev *rt2x00dev)
--
2.20.1
\
 
 \ /
  Last update: 2019-01-22 16:25    [W:0.080 / U:0.072 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site