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| author | Antonino A. Daplas <adaplas@gmail.com> | 2006-10-03 01:14:50 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-10-03 08:04:10 -0700 |
| commit | 0a727dea774c47ad1e18907be33f12c9f325ee4a (patch) | |
| tree | 77065559c6448f9c271899da008aa55428459480 /drivers/video | |
| parent | 1a6600be3e5dafe2ddcc5d969d931c2591eed896 (diff) | |
| download | lwn-0a727dea774c47ad1e18907be33f12c9f325ee4a.tar.gz lwn-0a727dea774c47ad1e18907be33f12c9f325ee4a.zip | |
[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')
| -rw-r--r-- | drivers/video/console/fbcon.c | 34 |
1 files changed, 27 insertions, 7 deletions
diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c index 9e3ff00e4c14..8c041daa3a15 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) |