tree 5f7a71ee9d99d3446c11dcba0299f0bbb10637fb
parent 1fb8ea3e933652554c313c6742768a5a2c8b3fb1
author Colin Ian King <colin.king@canonical.com> 1594910336 +0100
committer Paul E. McKenney <paulmck@kernel.org> 1595260199 -0700

refperf: Avoid null pointer dereference when buf fails to allocate

Currently in the unlikely event that buf fails to be allocated it
is dereferenced a few times.  Use the errexit flag to determine if
buf should be written to to avoid the null pointer dereferences.

Addresses-Coverity: ("Dereference after null check")
Fixes: f518f154ecef ("refperf: Dynamically allocate experiment-summary output buffer")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>