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| author | Karel Zak | 2013-03-15 14:23:04 +0100 |
|---|---|---|
| committer | Karel Zak | 2013-03-15 14:59:02 +0100 |
| commit | 2bb7a706a19b3473b06c2f365994660c89c4bc87 (patch) | |
| tree | 8846e3c0e23d5ab4d5e5d9e285ace1523be2fbd9 /libblkid/src/tag.c | |
| parent | build-sys: inform gtk-doc about __ul_attribute__ (diff) | |
| download | kernel-qcow2-util-linux-2bb7a706a19b3473b06c2f365994660c89c4bc87.tar.gz kernel-qcow2-util-linux-2bb7a706a19b3473b06c2f365994660c89c4bc87.tar.xz kernel-qcow2-util-linux-2bb7a706a19b3473b06c2f365994660c89c4bc87.zip | |
libblkid: clean up header file
* don't teach people C by header files, so use warn_unused_result
attribute only on places where we return allocated memory (to avoid
leaks in applications).
Signed-off-by: Karel Zak <kzak@redhat.com>
Diffstat (limited to 'libblkid/src/tag.c')
| -rw-r--r-- | libblkid/src/tag.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/libblkid/src/tag.c b/libblkid/src/tag.c index 9dbacef04..5b1f356bf 100644 --- a/libblkid/src/tag.c +++ b/libblkid/src/tag.c @@ -283,6 +283,11 @@ extern blkid_tag_iterate blkid_tag_iterate_begin(blkid_dev dev) { blkid_tag_iterate iter; + if (!dev) { + errno = EINVAL; + return NULL; + } + iter = malloc(sizeof(struct blkid_struct_tag_iterate)); if (iter) { iter->magic = TAG_ITERATE_MAGIC; |