diff options
Diffstat (limited to 'sysfs.c')
-rw-r--r-- | sysfs.c | 5 |
1 files changed, 5 insertions, 0 deletions
@@ -81,6 +81,7 @@ int sysfs_open(int devnum, char *devname, char *attr) void sysfs_init(struct mdinfo *mdi, int fd, int devnum) { + mdi->sys_name[0] = 0; if (fd >= 0) { mdu_version_t vers; if (ioctl(fd, RAID_VERSION, &vers) != 0) @@ -118,6 +119,10 @@ struct mdinfo *sysfs_read(int fd, int devnum, unsigned long options) return sra; memset(sra, 0, sizeof(*sra)); sysfs_init(sra, fd, devnum); + if (sra->sys_name[0] == 0) { + free(sra); + return NULL; + } sprintf(fname, "/sys/block/%s/md/", sra->sys_name); base = fname + strlen(fname); |