In case /sys/devices/virtual/ubi/ubi?/ubi?_?/name doesn't exist volname
will be NULL and calling strlen for NULL isn't a good idea.
Signed-off-by: Rafał Miłecki <zaj...@gmail.com>
---
libfstools/ubi.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/libfstools/ubi.c b/libfstools/ubi.c
index 866034a..ac9eb1b 100644
--- a/libfstools/ubi.c
+++ b/libfstools/ubi.c
@@ -143,6 +143,10 @@ static int ubi_volume_match(struct volume *v, char *name,
int ubi_num, int volid
/* todo: skip existing gluebi device for legacy support */
volname = read_string_from_file(voldir, "name");
+ if (!volname) {
+ fprintf(stderr, "Couldn't read %s/name\n", voldir);
+ return -1;
+ }
if (strncmp(name, volname, strlen(volname) + 1))
return -1;
--
1.8.4.5
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