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36595d8ad4
SMC connections might fail to be registered in a link group due to
unable to find a usable link during its creation. As a result,
smc_conn_create() will return a failure and most resources related
to the connection won't be applied or initialized, such as
conn->abort_work or conn->lnk.
If smc_conn_free() is invoked later, it will try to access the
uninitialized resources related to the connection, thus causing
a warning or crash.
This patch tries to fix this by resetting conn->lgr to NULL if an
abnormal exit occurs in smc_lgr_register_conn(), thus avoiding the
access to uninitialized resources in smc_conn_free().
Meanwhile, the new created link group should be terminated if smc
connections can't be registered in it. So smc_lgr_cleanup_early() is
modified to take care of link group only and invoked to terminate
unusable link group by smc_conn_create(). The call to smc_conn_free()
is moved out from smc_lgr_cleanup_early() to smc_conn_abort().
Fixes:
|
||
|---|---|---|
| .. | ||
| af_smc.c | ||
| Kconfig | ||
| Makefile | ||
| smc.h | ||
| smc_cdc.c | ||
| smc_cdc.h | ||
| smc_clc.c | ||
| smc_clc.h | ||
| smc_close.c | ||
| smc_close.h | ||
| smc_core.c | ||
| smc_core.h | ||
| smc_diag.c | ||
| smc_ib.c | ||
| smc_ib.h | ||
| smc_ism.c | ||
| smc_ism.h | ||
| smc_llc.c | ||
| smc_llc.h | ||
| smc_netlink.c | ||
| smc_netlink.h | ||
| smc_netns.h | ||
| smc_pnet.c | ||
| smc_pnet.h | ||
| smc_rx.c | ||
| smc_rx.h | ||
| smc_stats.c | ||
| smc_stats.h | ||
| smc_tracepoint.c | ||
| smc_tracepoint.h | ||
| smc_tx.c | ||
| smc_tx.h | ||
| smc_wr.c | ||
| smc_wr.h | ||