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authorWolfram Sang <w.sang@pengutronix.de>2010-04-06 14:34:52 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-04-07 08:38:03 -0700
commit12765517d9dbb477a2432375938f1eb5bdbcb532 (patch)
tree5c0e4002378fe3b65e20ea4959276d22b0a22911 /drivers/macintosh
parent975f8c5653acba461229e671202113da69b87be1 (diff)
downloadop-kernel-dev-12765517d9dbb477a2432375938f1eb5bdbcb532.zip
op-kernel-dev-12765517d9dbb477a2432375938f1eb5bdbcb532.tar.gz
device_attributes: add sysfs_attr_init() for dynamic attributes
Made necessary by 6992f5334995af474c2b58d010d08bc597f0f2fe ("sysfs: Use one lockdep class per sysfs attribute"). Prevents further "key xxx not in .data" bug-reports. Although some attributes could probably be converted to static ones, this is left for people having hardware to test. Found by this semantic patch: @ init @ type T; identifier A; @@ T { ... struct device_attribute A; ... }; @ main extends init @ expression E; statement S; identifier err; T *name; @@ ... when != sysfs_attr_init(&name->A.attr); ( + sysfs_attr_init(&name->A.attr); if (device_create_file(E, &name->A)) S | + sysfs_attr_init(&name->A.attr); err = device_create_file(E, &name->A); ) While reviewing, I put the initialization to apropriate places. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Cc: Eric W. Biederman <ebiederm@xmission.com> Cc: Greg KH <gregkh@suse.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Mike Isely <isely@pobox.com> Cc: Mauro Carvalho Chehab <mchehab@infradead.org> Cc: Sujith Thomas <sujith.thomas@intel.com> Cc: Matthew Garrett <mjg@redhat.com> Cc: Len Brown <len.brown@intel.com> Cc: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/macintosh')
-rw-r--r--drivers/macintosh/windfarm_core.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/macintosh/windfarm_core.c b/drivers/macintosh/windfarm_core.c
index c092354..ce88979 100644
--- a/drivers/macintosh/windfarm_core.c
+++ b/drivers/macintosh/windfarm_core.c
@@ -210,6 +210,7 @@ int wf_register_control(struct wf_control *new_ct)
kref_init(&new_ct->ref);
list_add(&new_ct->link, &wf_controls);
+ sysfs_attr_init(&new_ct->attr.attr);
new_ct->attr.attr.name = new_ct->name;
new_ct->attr.attr.mode = 0644;
new_ct->attr.show = wf_show_control;
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