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authorAntonino A. Daplas <adaplas@gmail.com>2006-10-03 01:14:50 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-10-03 08:04:10 -0700
commit0a727dea774c47ad1e18907be33f12c9f325ee4a (patch)
tree77065559c6448f9c271899da008aa55428459480 /drivers/video/console
parent1a6600be3e5dafe2ddcc5d969d931c2591eed896 (diff)
[PATCH] fbcon: Honor the return value of device_create_file
Check the return value of device_create_file(). If return is 'fail', remove attributes by calling device_remove_file(). Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/video/console')
-rw-r--r--drivers/video/console/fbcon.c34
1 files changed, 27 insertions, 7 deletions
diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c
index 9e3ff00e4c1..8c041daa3a1 100644
--- a/drivers/video/console/fbcon.c
+++ b/drivers/video/console/fbcon.c
@@ -133,6 +133,7 @@ static int info_idx = -1;
/* console rotation */
static int rotate;
+static int fbcon_has_sysfs;
static const struct consw fb_con;
@@ -3166,11 +3167,26 @@ static struct class_device_attribute class_device_attrs[] = {
static int fbcon_init_class_device(void)
{
- int i;
+ int i, error = 0;
+
+ fbcon_has_sysfs = 1;
+
+ for (i = 0; i < ARRAY_SIZE(class_device_attrs); i++) {
+ error = class_device_create_file(fbcon_class_device,
+ &class_device_attrs[i]);
+
+ if (error)
+ break;
+ }
+
+ if (error) {
+ while (--i >= 0)
+ class_device_remove_file(fbcon_class_device,
+ &class_device_attrs[i]);
+
+ fbcon_has_sysfs = 0;
+ }
- for (i = 0; i < ARRAY_SIZE(class_device_attrs); i++)
- class_device_create_file(fbcon_class_device,
- &class_device_attrs[i]);
return 0;
}
@@ -3279,9 +3295,13 @@ static void __exit fbcon_deinit_class_device(void)
{
int i;
- for (i = 0; i < ARRAY_SIZE(class_device_attrs); i++)
- class_device_remove_file(fbcon_class_device,
- &class_device_attrs[i]);
+ if (fbcon_has_sysfs) {
+ for (i = 0; i < ARRAY_SIZE(class_device_attrs); i++)
+ class_device_remove_file(fbcon_class_device,
+ &class_device_attrs[i]);
+
+ fbcon_has_sysfs = 0;
+ }
}
static void __exit fb_console_exit(void)