From: Manivannan Sadhasivam manivannan.sadhasivam@linaro.org
[ Upstream commit 7b844cf445f0a7daa68be0ce71eb2c88d68b0c5d ]
In the case of failure while parsing the partitions, the iterator should be pre decremented by one before starting to free the memory allocated by kstrdup(). Because in the failure case, kstrdup() will not succeed and thus no memory will be allocated for the current iteration.
Fixes: 1fca1f6abb38 ("mtd: afs: simplify partition parsing") Signed-off-by: Manivannan Sadhasivam manivannan.sadhasivam@linaro.org Reviewed-by: Linus Walleij linus.walleij@linaro.org Cc: Linus Walleij linus.walleij@linaro.org Signed-off-by: Miquel Raynal miquel.raynal@bootlin.com Link: https://lore.kernel.org/linux-mtd/20210104041137.113075-5-manivannan.sadhasi... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/mtd/parsers/afs.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/mtd/parsers/afs.c b/drivers/mtd/parsers/afs.c index 752b6cf005f71..8fd61767af831 100644 --- a/drivers/mtd/parsers/afs.c +++ b/drivers/mtd/parsers/afs.c @@ -370,10 +370,8 @@ static int parse_afs_partitions(struct mtd_info *mtd, return i;
out_free_parts: - while (i >= 0) { + while (--i >= 0) kfree(parts[i].name); - i--; - } kfree(parts); *pparts = NULL; return ret;