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-rw-r--r--libdm/dm-tools/dmsetup.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/libdm/dm-tools/dmsetup.c b/libdm/dm-tools/dmsetup.c
index 8502d9adc..42eeead68 100644
--- a/libdm/dm-tools/dmsetup.c
+++ b/libdm/dm-tools/dmsetup.c
@@ -5106,8 +5106,9 @@ static int _size_from_string(char *argptr, uint64_t *size, const char *name)
if (!argptr)
return_0;
+ errno = 0;
*size = strtoull(argptr, &endptr, 10);
- if (endptr == argptr) {
+ if (errno || endptr == argptr) {
*size = 0;
log_error("Invalid %s argument: \"%s\"",
name, (*argptr) ? argptr : "");