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mtd: virt-concat: free duplicate generated name

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Every MTD registration runs mtd_virt_concat_create_join().  Once a
virtual concat has already been registered, the function builds the same
name again and takes the equal-name branch.  That branch skips to the
next item without freeing the newly allocated string.

Free the temporary name before continuing.

Fixes: 43db6366fc ("mtd: Add driver for concatenating devices")
Cc: stable@vger.kernel.org
Signed-off-by: Xu Rao <raoxu@uniontech.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
This commit is contained in:
Xu Rao 2026-06-26 10:13:38 +08:00 committed by Miquel Raynal
parent 16f7ec8d5d
commit caa0ecbeff
1 changed files with 3 additions and 1 deletions
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4
drivers/mtd/mtd_virt_concat.c
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@ -321,8 +321,10 @@ int mtd_virt_concat_create_join(void)
if (concat->mtd.name) {
ret = memcmp(concat->mtd.name, name, name_sz);
if (ret == 0)
if (ret == 0) {
kfree(name);
continue;
}
}
mtd = mtd_concat_create(concat->subdev, concat->num_subdev, name);
if (!mtd) {