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Roland Dreier 6ef190cc92 IPoIB: Fix crash when path record fails after path flush ... Commit ee1e2c82 ("IPoIB: Refresh paths instead of flushing them on SM change events") changed how paths are flushed on an SM event. This change introduces a problem if the path record query triggered by fails, causing path->ah to become NULL. A later successful path query will then trigger WARN_ON() in path_rec_completion(), and crash because path->ah has already been freed, so the ipoib_put_ah() inside the lock in path_rec_completion() may actually drop the last reference (contrary to the comment that claims this is safe). Fix this by updating path->ah and freeing old_ah only when the path record query is successful. This prevents the neighbour AH and that path AH from getting out of sync. This fixes <https://bugs.openfabrics.org/show_bug.cgi?id=1194> Reported-by: Rabah Salem <ravah@mellanox.com> Debugged-by: Eli Cohen <eli@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		17 years ago
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Kconfig	IPoIB: Correct help text for INFINIBAND_IPOIB_DEBUG	17 years ago
Makefile	IPoIB: Add basic ethtool support	17 years ago
ipoib.h	IPoIB: Fix deadlock on RTNL between bcast join comp and ipoib_stop()	17 years ago
ipoib_cm.c	IPoIB/cm: Use vmalloc() to allocate rx_rings	17 years ago
ipoib_ethtool.c	IPoIB: add LRO support	17 years ago
ipoib_fs.c	RDMA: Remove subversion $Id tags	17 years ago
ipoib_ib.c	IPoIB: Refresh paths instead of flushing them on SM change events	17 years ago
ipoib_main.c	IPoIB: Fix crash when path record fails after path flush	17 years ago
ipoib_multicast.c	IPoIB: Fix deadlock on RTNL between bcast join comp and ipoib_stop()	17 years ago
ipoib_verbs.c	IPoIB: Get rid of ipoib_mcast_detach() wrapper	17 years ago
ipoib_vlan.c	RDMA: Remove subversion $Id tags	17 years ago