From: Roland Dreier Date: Wed, 25 May 2005 19:31:29 +0000 (-0700) Subject: [PATCH] IB: allow NULL sa_query callbacks X-Git-Tag: v2.6.12-rc6~156 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e4f50f003dc568f6fc3904d451c562007bd09640;p=pandora-kernel.git [PATCH] IB: allow NULL sa_query callbacks Check if a client passes a NULL callback into an SA query, and if so, never call back. This fixes an oops if someone unloads ib_ipoib and ib_sa in rapid succession. ib_ipoib does an MCMember delete with a NULL callback and 0 timeout on unload, which is usually fine since the delete completes successfully. However, if ib_sa is unloaded immediately afterwards, the delete will be canceled and ib_sa will try to call the (now already unloaded) ib_ipoib module back with the cancel completion, which triggers the oops. Signed-off-by: Roland Dreier Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Reading git-diff-tree failed