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pvscan: fix error message for invalid devname

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uninitialized name buffer used in message.
fixes "pvs_online: include devname in pvid files"
This commit is contained in:
David Teigland 2021-12-01 14:36:40 -06:00
parent 05d9a01351
commit c42a05c3ec
1 changed files with 6 additions and 1 deletions
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7
lib/device/dev-cache.c
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@ -2102,7 +2102,7 @@ int setup_devices_for_online_autoactivation(struct cmd_context *cmd)
static char *_get_devname_from_devno(struct cmd_context *cmd, dev_t devno)
{
char path[PATH_MAX];
char devname[PATH_MAX];
char devname[PATH_MAX] = { 0 };
char namebuf[NAME_LEN];
char line[1024];
int major = MAJOR(devno);
@ -2114,6 +2114,9 @@ static char *_get_devname_from_devno(struct cmd_context *cmd, dev_t devno)
struct dirent *dirent;
FILE *fp;
if (!devno)
return NULL;
/*
* $ ls /sys/dev/block/8:0/device/block/
* sda
@ -2251,6 +2254,8 @@ struct device *setup_dev_in_dev_cache(struct cmd_context *cmd, dev_t devno, cons
if (devname) {
if (stat(devname, &buf) < 0) {
log_error("Cannot access device %s for %d:%d.", devname, major, minor);
if (!devno)
return_NULL;
if (!(devname = _get_devname_from_devno(cmd, devno))) {
log_error("No device name found from %d:%d.", major, minor);
return_NULL;