vga_switcheroo: no need to check return value of debugfs_create functions
authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 13 Jun 2019 11:44:55 +0000 (13:44 +0200)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Thu, 13 Jun 2019 13:10:01 +0000 (15:10 +0200)
commit90e73491d5db182407ce6b44bf4c88e7fbe706c1
treed1d9f75ec4a771b5d648aa736c27137e53374f4a
parent921721738f4994b54f916f9a3bdd5dfdf26f753c
vga_switcheroo: 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.

Also, because there is no need to save the file dentry, remove the local
variable and just recursively delete the whole directory when shutting
down.

Cc: Lukas Wunner <lukas@wunner.de>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <maxime.ripard@bootlin.com>
Cc: Sean Paul <sean@poorly.run>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20190613114455.GA13119@kroah.com
drivers/gpu/vga/vga_switcheroo.c