summaryrefslogtreecommitdiffstats
path: root/lib/sysfs.c
diff options
context:
space:
mode:
authorYuriy M. Kaminskiy2016-02-27 17:14:44 +0100
committerKarel Zak2016-03-07 15:11:06 +0100
commitff27b20f3ce74043d512522f28af59050c25541b (patch)
treef70a4278cf80b90e1827190f9124fdc1c2bebc54 /lib/sysfs.c
parentlscpu: fix backward buffer size adjustment after adding delimiter (diff)
downloadkernel-qcow2-util-linux-ff27b20f3ce74043d512522f28af59050c25541b.tar.gz
kernel-qcow2-util-linux-ff27b20f3ce74043d512522f28af59050c25541b.tar.xz
kernel-qcow2-util-linux-ff27b20f3ce74043d512522f28af59050c25541b.zip
lsns.c: fix error return
If non-negative value returned, errno could be unset (especially 0). Signed-off-by: Karel Zak <kzak@redhat.com>
Diffstat (limited to 'lib/sysfs.c')
-rw-r--r--lib/sysfs.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/sysfs.c b/lib/sysfs.c
index 53aba3af9..9d7614880 100644
--- a/lib/sysfs.c
+++ b/lib/sysfs.c
@@ -464,7 +464,7 @@ int sysfs_write_u64(struct sysfs_cxt *cxt, const char *attr, uint64_t num)
len = snprintf(buf, sizeof(buf), "%" PRIu64, num);
if (len < 0 || (size_t) len + 1 > sizeof(buf))
- rc = -errno;
+ rc = len < 0 ? -errno : -E2BIG;
else
rc = write_all(fd, buf, len);