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dma-buf: remove dma_buf_debugfs_create_file()

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There is only a single user of dma_buf_debugfs_create_file() and that
one got the function pointer cast wrong. With that one fixed, there is
no need to have a wrapper for debugfs_create_file(), just call it
directly.

With no users left, we can remove dma_buf_debugfs_create_file().

While at it, simplify the error handling in dma_buf_init_debugfs()
slightly.

Signed-off-by: Mathias Krause <minipli@googlemail.com>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1466339491-12639-2-git-send-email-minipli@googlemail.com
This commit is contained in:
Mathias Krause 2016-06-19 14:31:31 +02:00 committed by Sumit Semwal
parent b747999043
commit bd3e22088f
2 changed files with 9 additions and 22 deletions
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29
drivers/dma-buf/dma-buf.c
View File

@ -895,22 +895,22 @@ static struct dentry *dma_buf_debugfs_dir;
static int dma_buf_init_debugfs(void)
{
struct dentry *d;
int err = 0;
dma_buf_debugfs_dir = debugfs_create_dir("dma_buf", NULL);
d = debugfs_create_dir("dma_buf", NULL);
if (IS_ERR(d))
return PTR_ERR(d);
if (IS_ERR(dma_buf_debugfs_dir)) {
err = PTR_ERR(dma_buf_debugfs_dir);
dma_buf_debugfs_dir = NULL;
return err;
}
dma_buf_debugfs_dir = d;
err = dma_buf_debugfs_create_file("bufinfo", NULL);
if (err) {
d = debugfs_create_file("bufinfo", S_IRUGO, dma_buf_debugfs_dir,
NULL, &dma_buf_debug_fops);
if (IS_ERR(d)) {
pr_debug("dma_buf: debugfs: failed to create node bufinfo\n");
debugfs_remove_recursive(dma_buf_debugfs_dir);
dma_buf_debugfs_dir = NULL;
err = PTR_ERR(d);
}
return err;
@ -921,17 +921,6 @@ static void dma_buf_uninit_debugfs(void)
if (dma_buf_debugfs_dir)
debugfs_remove_recursive(dma_buf_debugfs_dir);
}
int dma_buf_debugfs_create_file(const char *name,
int (*write)(struct seq_file *))
{
struct dentry *d;
d = debugfs_create_file(name, S_IRUGO, dma_buf_debugfs_dir,
write, &dma_buf_debug_fops);
return PTR_ERR_OR_ZERO(d);
}
#else
static inline int dma_buf_init_debugfs(void)
{

2
include/linux/dma-buf.h
View File

@ -242,6 +242,4 @@ int dma_buf_mmap(struct dma_buf *, struct vm_area_struct *,
unsigned long);
void *dma_buf_vmap(struct dma_buf *);
void dma_buf_vunmap(struct dma_buf *, void *vaddr);
int dma_buf_debugfs_create_file(const char *name,
int (*write)(struct seq_file *));
#endif /* __DMA_BUF_H__ */