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Subject[PATCH 5.1 17/55] dm init: fix incorrect uses of kstrndup()
Date
From: Gen Zhang <blackgod016574@gmail.com>

commit dec7e6494e1aea6bf676223da3429cd17ce0af79 upstream.

Fix 2 kstrndup() calls with incorrect argument order.

Fixes: 6bbc923dfcf5 ("dm: add support to directly boot to a mapped device")
Cc: stable@vger.kernel.org # v5.1
Signed-off-by: Gen Zhang <blackgod016574@gmail.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
drivers/md/dm-init.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

--- a/drivers/md/dm-init.c
+++ b/drivers/md/dm-init.c
@@ -140,8 +140,8 @@ static char __init *dm_parse_table_entry
return ERR_PTR(-EINVAL);
}
/* target_args */
- dev->target_args_array[n] = kstrndup(field[3], GFP_KERNEL,
- DM_MAX_STR_SIZE);
+ dev->target_args_array[n] = kstrndup(field[3], DM_MAX_STR_SIZE,
+ GFP_KERNEL);
if (!dev->target_args_array[n])
return ERR_PTR(-ENOMEM);

@@ -275,7 +275,7 @@ static int __init dm_init_init(void)
DMERR("Argument is too big. Limit is %d\n", DM_MAX_STR_SIZE);
return -EINVAL;
}
- str = kstrndup(create, GFP_KERNEL, DM_MAX_STR_SIZE);
+ str = kstrndup(create, DM_MAX_STR_SIZE, GFP_KERNEL);
if (!str)
return -ENOMEM;


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