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authorMichael Buesch <mb@bu3sch.de>2009-04-26 11:27:33 +0200
committerJohn W. Linville <linville@tuxdriver.com>2009-05-06 21:14:44 +0200
commit44e1b98f733e48bb781e4229120e1de5e0c9fdbb (patch)
treeea78354841cd6c6ea74e9005343b1119eca6f7be
parentcfg80211: Remove unnecessary ksize() call (diff)
downloadlinux-44e1b98f733e48bb781e4229120e1de5e0c9fdbb.tar.xz
linux-44e1b98f733e48bb781e4229120e1de5e0c9fdbb.zip
cfg80211: Use the correct IE buffer pointer
If the IE buffer was allocated, the pub.information_elements pointer was also changed to the allocated space. So we must not assume anymore that the pointer points at the "found" tail. So if it was allocated previously, take the codebranch that grows the buffer size (if necessary) and put the data into the allocated buffer. Signed-off-by: Michael Buesch <mb@bu3sch.de> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
-rw-r--r--net/wireless/scan.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index 5dd909a4e601..10b4887dfa6b 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -377,7 +377,7 @@ cfg80211_bss_update(struct cfg80211_registered_device *dev,
size_t used = dev->wiphy.bss_priv_size + sizeof(*res);
size_t ielen = res->pub.len_information_elements;
- if (ksize(found) >= used + ielen) {
+ if (!found->ies_allocated && ksize(found) >= used + ielen) {
memcpy(found->pub.information_elements,
res->pub.information_elements, ielen);
found->pub.len_information_elements = ielen;