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usb: use non-racy method for proc entries creation

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Use proc_create()/proc_create_data() to make sure that ->proc_fops and ->data
be setup before gluing PDE to main tree.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Denis V. Lunev 2008-04-29 01:02:19 -07:00 committed by Linus Torvalds
parent a973909fc3
commit cdefa185dd
3 changed files with 5 additions and 23 deletions
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11
drivers/usb/gadget/at91_udc.c
View file

@ -231,6 +231,7 @@ static int proc_udc_open(struct inode *inode, struct file *file)
}
static const struct file_operations proc_ops = {
.owner = THIS_MODULE,
.open = proc_udc_open,
.read = seq_read,
.llseek = seq_lseek,
@ -239,15 +240,7 @@ static const struct file_operations proc_ops = {
static void create_debug_file(struct at91_udc *udc)
{
struct proc_dir_entry *pde;
pde = create_proc_entry (debug_filename, 0, NULL);
udc->pde = pde;
if (pde == NULL)
return;
pde->proc_fops = &proc_ops;
pde->data = udc;
udc->pde = proc_create_data(debug_filename, 0, NULL, &proc_ops, udc);
}
static void remove_debug_file(struct at91_udc *udc)

7
drivers/usb/gadget/omap_udc.c
View file

@ -2504,6 +2504,7 @@ static int proc_udc_open(struct inode *inode, struct file *file)
}
static const struct file_operations proc_ops = {
.owner = THIS_MODULE,
.open = proc_udc_open,
.read = seq_read,
.llseek = seq_lseek,
@ -2512,11 +2513,7 @@ static const struct file_operations proc_ops = {
static void create_proc_file(void)
{
struct proc_dir_entry *pde;
pde = create_proc_entry (proc_filename, 0, NULL);
if (pde)
pde->proc_fops = &proc_ops;
proc_create(proc_filename, 0, NULL, &proc_ops);
}
static void remove_proc_file(void)

10
drivers/usb/host/sl811-hcd.c
View file

@ -1506,15 +1506,7 @@ static const char proc_filename[] = "driver/sl811h";
static void create_debug_file(struct sl811 *sl811)
{
struct proc_dir_entry *pde;
pde = create_proc_entry(proc_filename, 0, NULL);
if (pde == NULL)
return;
pde->proc_fops = &proc_ops;
pde->data = sl811;
sl811->pde = pde;
sl811->pde = proc_create_data(proc_filename, 0, NULL, &proc_ops, sl811);
}
static void remove_debug_file(struct sl811 *sl811)