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init: clear root_wait on all invalid root= strings 

Instead of only clearing root_wait in devt_from_partuuid when the UUID
format was invalid, do that in parse_root_device for all strings that
failed to parse.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20230531125535.676098-15-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2023-05-31 14:55:25 +02:00 committed by Jens Axboe
parent cf056a4312
commit 079caa35f7
1 changed files with 11 additions and 7 deletions
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18
init/do_mounts.c
View File

@ -112,14 +112,14 @@ static int devt_from_partuuid(const char *uuid_str, dev_t *devt)
/* Explicitly fail on poor PARTUUID syntax. */
if (sscanf(slash + 1, "PARTNROFF=%d%c", &offset, &c) != 1)
goto clear_root_wait;
goto out_invalid;
cmp.len = slash - uuid_str;
} else {
cmp.len = strlen(uuid_str);
}
if (!cmp.len)
goto clear_root_wait;
goto out_invalid;
dev = class_find_device(&block_class, NULL, &cmp, &match_dev_by_uuid);
if (!dev)
@ -139,12 +139,9 @@ static int devt_from_partuuid(const char *uuid_str, dev_t *devt)
put_device(dev);
return 0;
clear_root_wait:
out_invalid:
pr_err("VFS: PARTUUID= is invalid.\n"
"Expected PARTUUID=<valid-uuid-id>[/PARTNROFF=%%d]\n");
if (root_wait)
pr_err("Disabling rootwait; root= is invalid.\n");
root_wait = 0;
return -EINVAL;
}
@ -611,6 +608,7 @@ static void __init wait_for_root(char *root_device_name)
static dev_t __init parse_root_device(char *root_device_name)
{
int error;
dev_t dev;
if (!strncmp(root_device_name, "mtd", 3) ||
@ -623,8 +621,14 @@ static dev_t __init parse_root_device(char *root_device_name)
if (strcmp(root_device_name, "/dev/ram") == 0)
return Root_RAM0;
if (early_lookup_bdev(root_device_name, &dev))
error = early_lookup_bdev(root_device_name, &dev);
if (error) {
if (error == -EINVAL && root_wait) {
pr_err("Disabling rootwait; root= is invalid.\n");
root_wait = 0;
}
return 0;
}
return dev;
}