From: Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
Date: Fri, 25 Oct 2019 21:56:26 +0000 (-0400)
Subject: Fix: lttng: initialize sessions pointer to NULL
X-Git-Tag: v2.11.1~55
X-Git-Url: https://git.lttng.org/?a=commitdiff_plain;h=664537baa0570e36f13ce63c9a2d1ead7a1e567f;hp=664537baa0570e36f13ce63c9a2d1ead7a1e567f;p=lttng-tools.git

Fix: lttng: initialize sessions pointer to NULL

lttng_list_sessions does not set the passed pointer to NULL on empty
return. This leads to a deallocation of an invalid pointer (segfault).

For returns of size 0, the value of the passed argument should be
considered "undefined".

Refactor error handling a bit by removing the "error" jump. Always
call free on the 'sessions' object.

Fixes #1205

Signed-off-by: Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
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