There is no need to keep the dentries around for the individual debugfs
files, just delete the whole directory all at once at shutdown instead.
This also fixes a tiny memory leak where the memory for the pointers to
the file dentries was never freed when the device shut down, as well as
making the logic of the code a lot simpler.
Cc: Bartlomiej Zolnierkiewicz <b.zolnier...@samsung.com>
Cc: dri-de...@lists.freedesktop.org
Cc: linux-fb...@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
drivers/video/fbdev/mbx/mbxdebugfs.c | 40 +++++++++-------------------
drivers/video/fbdev/mbx/mbxfb.c | 2 +-
2 files changed, 14 insertions(+), 28 deletions(-)
diff --git a/drivers/video/fbdev/mbx/mbxdebugfs.c
b/drivers/video/fbdev/mbx/mbxdebugfs.c
index 2bd328883178..52cfe0132b25 100644
--- a/drivers/video/fbdev/mbx/mbxdebugfs.c
+++ b/drivers/video/fbdev/mbx/mbxdebugfs.c
@@ -211,36 +211,22 @@ static const struct file_operations misc_fops = {
static void mbxfb_debugfs_init(struct fb_info *fbi)
{
struct mbxfb_info *mfbi = fbi->par;
- struct mbxfb_debugfs_data *dbg;
-
- dbg = kzalloc(sizeof(struct mbxfb_debugfs_data), GFP_KERNEL);
- mfbi->debugfs_data = dbg;
-
- dbg->dir = debugfs_create_dir("mbxfb", NULL);
- dbg->sysconf = debugfs_create_file("sysconf", 0444, dbg->dir,
- fbi, &sysconf_fops);
- dbg->clock = debugfs_create_file("clock", 0444, dbg->dir,
- fbi, &clock_fops);
- dbg->display = debugfs_create_file("display", 0444, dbg->dir,
- fbi, &display_fops);
- dbg->gsctl = debugfs_create_file("gsctl", 0444, dbg->dir,
- fbi, &gsctl_fops);
- dbg->sdram = debugfs_create_file("sdram", 0444, dbg->dir,
- fbi, &sdram_fops);
- dbg->misc = debugfs_create_file("misc", 0444, dbg->dir,
- fbi, &misc_fops);
+ struct dentry *dir;
+
+ dir = debugfs_create_dir("mbxfb", NULL);
+ mbfi->debugfs_dir = dir;
+
+ debugfs_create_file("sysconf", 0444, dir, fbi, &sysconf_fops);
+ debugfs_create_file("clock", 0444, dir, fbi, &clock_fops);
+ debugfs_create_file("display", 0444, dir, fbi, &display_fops);
+ debugfs_create_file("gsctl", 0444, dir, fbi, &gsctl_fops);
+ debugfs_create_file("sdram", 0444, dir, fbi, &sdram_fops);
+ debugfs_create_file("misc", 0444, dir, fbi, &misc_fops);
}
static void mbxfb_debugfs_remove(struct fb_info *fbi)
{
struct mbxfb_info *mfbi = fbi->par;
- struct mbxfb_debugfs_data *dbg = mfbi->debugfs_data;
-
- debugfs_remove(dbg->misc);
- debugfs_remove(dbg->sdram);
- debugfs_remove(dbg->gsctl);
- debugfs_remove(dbg->display);
- debugfs_remove(dbg->clock);
- debugfs_remove(dbg->sysconf);
- debugfs_remove(dbg->dir);
+
+ debugfs_remove_recursive(mfbi->debugfs_dir);
}
diff --git a/drivers/video/fbdev/mbx/mbxfb.c b/drivers/video/fbdev/mbx/mbxfb.c
index 539b85da0897..6ded480a69b4 100644
--- a/drivers/video/fbdev/mbx/mbxfb.c
+++ b/drivers/video/fbdev/mbx/mbxfb.c
@@ -74,7 +74,7 @@ struct mbxfb_info {
u32 pseudo_palette[MAX_PALETTES];
#ifdef CONFIG_FB_MBX_DEBUG
- void *debugfs_data;
+ struct dentry *debugfs_dir;
#endif
};
--
2.20.1
