If block is NULL, find_mount_point will segfault when comparing it
against the device name found in /proc/self/mountinfo. Avoid this by
checking if block is NULL.
Signed-off-by: Stijn Tintel <st...@linux-ipv6.be>
---
libfstools/find.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/libfstools/find.c b/libfstools/find.c
index cefdd23..1d91c51 100644
--- a/libfstools/find.c
+++ b/libfstools/find.c
@@ -109,6 +109,9 @@ find_mount_point(char *block, int root_only)
int rstat;
unsigned int minor, major;
+ if (!block)
+ return NULL;
+
if (!fp)
return NULL;
--
2.32.0
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