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read_dirs: always initialize l->next to NULL

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Resolve a segfault when using multiple lower layers.

Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
This commit is contained in:
Giuseppe Scrivano 2018-08-01 13:23:02 +02:00
parent 1ed274ba57
commit 21cb0e199d
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GPG Key ID: E4730F97F60286ED
1 changed files with 2 additions and 4 deletions
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main.c
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@ -998,11 +998,9 @@ read_dirs (char *path, bool low, struct ovl_layer *layers)
l->low = low; l->low = low;
if (low) if (low)
{ {
l->next = NULL;
if (last == NULL) if (last == NULL)
{ last = layers = l;
last = layers = l;
l->next = NULL;
}
else else
{ {
last->next = l; last->next = l;