Btrfs-progs: fix compile warning in is_ssd()

mkfs.c: In function ‘is_ssd’:
mkfs.c:1168:26: warning: ignoring return value of ‘blkid_devno_to_wholedisk’,
declared with attribute warn_unused_result [-Wunused-result]
  blkid_devno_to_wholedisk(devno, wholedisk, sizeof(wholedisk), NULL);

Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
This commit is contained in:
Wang Shilong 2013-09-04 19:43:20 +08:00 committed by Chris Mason
parent cdbc107292
commit 36dcac288e
1 changed files with 7 additions and 1 deletions

8
mkfs.c
View File

@ -1150,6 +1150,7 @@ static int is_ssd(const char *file)
dev_t devno; dev_t devno;
int fd; int fd;
char rotational; char rotational;
int ret;
probe = blkid_new_probe_from_filename(file); probe = blkid_new_probe_from_filename(file);
if (!probe) if (!probe)
@ -1161,7 +1162,12 @@ static int is_ssd(const char *file)
return 0; return 0;
/* Get whole disk name (not full path) for this devno */ /* Get whole disk name (not full path) for this devno */
blkid_devno_to_wholedisk(devno, wholedisk, sizeof(wholedisk), NULL); ret = blkid_devno_to_wholedisk(devno,
wholedisk, sizeof(wholedisk), NULL);
if (ret) {
blkid_free_probe(probe);
return 0;
}
snprintf(sysfs_path, PATH_MAX, "/sys/block/%s/queue/rotational", snprintf(sysfs_path, PATH_MAX, "/sys/block/%s/queue/rotational",
wholedisk); wholedisk);