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authorPetr Mladek <pmladek@suse.com>2017-09-25 17:41:59 +0200
committerJiri Kosina <jkosina@suse.cz>2017-10-02 11:55:24 +0200
commit19205da6a0da701787d42ad754edd1ffb514c956 (patch)
tree092e65563913317f9f23fdc10cd464dfbf5dad0c /Documentation/livepatch
parent5d9da759f7587c87252ef98e70bc0b4a89e4d036 (diff)
downloadlinux-19205da6a0da701787d42ad754edd1ffb514c956.tar.bz2
livepatch: Small shadow variable documentation fixes
The description of the basic operations was a bit inconsistent and based on older version of the patchset. Also the size of the spinlock structure should be allocated instead of the pointer. Signed-off-by: Petr Mladek <pmladek@suse.com> Acked-by: Joe Lawrence <joe.lawrence@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'Documentation/livepatch')
-rw-r--r--Documentation/livepatch/shadow-vars.txt4
1 files changed, 2 insertions, 2 deletions
diff --git a/Documentation/livepatch/shadow-vars.txt b/Documentation/livepatch/shadow-vars.txt
index e3ffc4301bfa..89c66634d600 100644
--- a/Documentation/livepatch/shadow-vars.txt
+++ b/Documentation/livepatch/shadow-vars.txt
@@ -6,7 +6,7 @@ Shadow variables are a simple way for livepatch modules to associate
additional "shadow" data with existing data structures. Shadow data is
allocated separately from parent data structures, which are left
unmodified. The shadow variable API described in this document is used
-to allocate/attach and detach/release shadow variables to their parents.
+to allocate/add and remove/free shadow variables to/from their parents.
The implementation introduces a global, in-kernel hashtable that
associates pointers to parent objects and a numeric identifier of the
@@ -107,7 +107,7 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
sta = kzalloc(sizeof(*sta) + hw->sta_data_size, gfp);
/* Attach a corresponding shadow variable, then initialize it */
- ps_lock = klp_shadow_alloc(sta, PS_LOCK, NULL, sizeof(ps_lock), gfp);
+ ps_lock = klp_shadow_alloc(sta, PS_LOCK, NULL, sizeof(*ps_lock), gfp);
if (!ps_lock)
goto shadow_fail;
spin_lock_init(ps_lock);