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staging: lustre: lustre: ptlrpc: sec_config.c: Fix for possible null pointer dereference

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There is otherwise a risk of a possible null pointer dereference.

Was largely found by using a static code analysis program called cppcheck.

Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Rickard Strandqvist 2014-05-19 23:42:08 +02:00 • committed by Greg Kroah-Hartman
commit fe456ff4bc
1 changed files with 6 additions and 4 deletions
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10
drivers/staging/lustre/lustre/ptlrpc/sec_config.c
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@ -745,11 +745,13 @@ void sptlrpc_conf_log_update_begin(const char *logname)
mutex_lock(&sptlrpc_conf_lock);
conf = sptlrpc_conf_get(fsname, 0);
if (conf && conf->sc_local) {
LASSERT(conf->sc_updated == 0);
sptlrpc_conf_free_rsets(conf);
if (conf) {
if(conf->sc_local) {
LASSERT(conf->sc_updated == 0);
sptlrpc_conf_free_rsets(conf);
}
conf->sc_modified = 0;
}
conf->sc_modified = 0;
mutex_unlock(&sptlrpc_conf_lock);
}