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sony-laptop: only show the handles sysfs file in debug mode

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It makes no sense to expose this type of information to userspace unless
the driver was explicitly loaded with the debug option.

Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
This commit is contained in:
Mattia Dongili 2011-04-05 23:38:35 +09:00 committed by Matthew Garrett
parent 8713b04ab8
commit 855b8bc995
1 changed files with 14 additions and 11 deletions
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25
drivers/platform/x86/sony-laptop.c
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@ -771,11 +771,6 @@ static int sony_nc_handles_setup(struct platform_device *pd)
if (!handles)
return -ENOMEM;
sysfs_attr_init(&handles->devattr.attr);
handles->devattr.attr.name = "handles";
handles->devattr.attr.mode = S_IRUGO;
handles->devattr.show = sony_nc_handles_show;
for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
if (!acpi_callsetfunc(sony_nc_acpi_handle,
"SN00", i + 0x20, &result)) {
@ -785,11 +780,18 @@ static int sony_nc_handles_setup(struct platform_device *pd)
}
}
/* allow reading capabilities via sysfs */
if (device_create_file(&pd->dev, &handles->devattr)) {
kfree(handles);
handles = NULL;
return -1;
if (debug) {
sysfs_attr_init(&handles->devattr.attr);
handles->devattr.attr.name = "handles";
handles->devattr.attr.mode = S_IRUGO;
handles->devattr.show = sony_nc_handles_show;
/* allow reading capabilities via sysfs */
if (device_create_file(&pd->dev, &handles->devattr)) {
kfree(handles);
handles = NULL;
return -1;
}
}
return 0;
@ -798,7 +800,8 @@ static int sony_nc_handles_setup(struct platform_device *pd)
static int sony_nc_handles_cleanup(struct platform_device *pd)
{
if (handles) {
device_remove_file(&pd->dev, &handles->devattr);
if (debug)
device_remove_file(&pd->dev, &handles->devattr);
kfree(handles);
handles = NULL;
}