[PATCH 08/41] sony_acpi: Allow easier debugging for the unknown SNC methods.

Len Brown
2007-02-13T05:49:59Z

From: Mattia Dongili <malattia@linux.it>

Allow the existence of a setter method without a getter and viceversa,
additionaly set /proc file permissions reflecting it.
Fix also the error exit path.

Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/acpi/sony_acpi.c | 30 +++++++++++++++++++++---------
1 files changed, 21 insertions(+), 9 deletions(-)

diff --git a/drivers/acpi/sony_acpi.c b/drivers/acpi/sony_acpi.c
index 138f2b6..69122ad 100644
--- a/drivers/acpi/sony_acpi.c
+++ b/drivers/acpi/sony_acpi.c
@@ -296,6 +296,7 @@ static int sony_acpi_add(struct acpi_device *device)
acpi_status status;
int result;
acpi_handle handle;
+ mode_t proc_file_mode;
struct sony_acpi_value *item;

sony_acpi_acpi_device = device;
@@ -334,20 +335,31 @@ static int sony_acpi_add(struct acpi_device *device)
}

for (item = sony_acpi_values; item->name; ++item) {
+ proc_file_mode = 0;
+
if (!debug && item->debug)
continue;

if (item->acpiget &&
- ACPI_FAILURE(acpi_get_handle(sony_acpi_handle,
+ ACPI_SUCCESS(acpi_get_handle(sony_acpi_handle,
item->acpiget, &handle)))
- continue;
+ proc_file_mode = S_IRUSR;
+ else
+ printk(LOG_PFX "unable to get ACPI handle for %s (get)\n",
+ item->name);

if (item->acpiset &&
- ACPI_FAILURE(acpi_get_handle(sony_acpi_handle,
+ ACPI_SUCCESS(acpi_get_handle(sony_acpi_handle,
item->acpiset, &handle)))
- continue;
+ proc_file_mode |= S_IWUSR;
+ else
+ printk(LOG_PFX "unable to get ACPI handle for %s (set)\n",
+ item->name);
+
+ if (proc_file_mode == 0)
+ continue;

- item->proc = create_proc_entry(item->name, 0666,
+ item->proc = create_proc_entry(item->name, proc_file_mode,
acpi_device_dir(device));
if (!item->proc) {
printk(LOG_PFX "unable to create proc entry\n");
@@ -366,15 +378,15 @@ static int sony_acpi_add(struct acpi_device *device)
return 0;

outproc:
+ for (item = sony_acpi_values; item->name; ++item)
+ if (item->proc)
+ remove_proc_entry(item->name, acpi_device_dir(device));
+outnotify:
status = acpi_remove_notify_handler(sony_acpi_handle,
ACPI_DEVICE_NOTIFY,
sony_acpi_notify);
if (ACPI_FAILURE(status))
printk(LOG_PFX "unable to remove notify handler\n");
-outnotify:
- for (item = sony_acpi_values; item->name; ++item)
- if (item->proc)
- remove_proc_entry(item->name, acpi_device_dir(device));
outwalk:
return result;
}
--
1.5.0.rc4.345.gb4d2