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block: don't return -EINVAL for not found names in devt_from_devname 

When we didn't find a device and didn't guess it might be a partition,
it might still show up later, so don't disable rootwait for it by
returning -EINVAL.

Fixes: 079caa35f7 ("init: clear root_wait on all invalid root= strings")
Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20230622150644.600327-1-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2023-06-22 17:06:44 +02:00 committed by Jens Axboe
parent 8270cb10c0
commit 648fa60fa7
1 changed files with 2 additions and 2 deletions
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4
block/early-lookup.c
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@ -175,7 +175,7 @@ static int __init devt_from_devname(const char *name, dev_t *devt)
while (p > s && isdigit(p[-1]))
p--;
if (p == s || !*p || *p == '0')
return -EINVAL;
return -ENODEV;
/* try disk name without <part number> */
part = simple_strtoul(p, NULL, 10);
@ -186,7 +186,7 @@ static int __init devt_from_devname(const char *name, dev_t *devt)
/* try disk name without p<part number> */
if (p < s + 2 || !isdigit(p[-2]) || p[-1] != 'p')
return -EINVAL;
return -ENODEV;
p[-1] = '\0';
*devt = blk_lookup_devt(s, part);
if (*devt)