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| author | Reshetova, Elena <elena.reshetova@intel.com> | 2017-07-04 15:53:01 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-07-04 22:35:16 +0100 |
| commit | 458bc30cec26c2716746ae215ed23773257e417d (patch) | |
| tree | 692d00b3c0b0af34c20fdfe31b7a9cf6fa33e3be /net | |
| parent | e0542dd5185e68247b08c3418bdba14644b4c414 (diff) | |
| download | linux-stable-458bc30cec26c2716746ae215ed23773257e417d.tar.gz linux-stable-458bc30cec26c2716746ae215ed23773257e417d.tar.bz2 linux-stable-458bc30cec26c2716746ae215ed23773257e417d.zip | |
net, atm: convert atm_dev.refcnt from atomic_t to refcount_t
refcount_t type and corresponding API should be
used instead of atomic_t when the variable is used as
a reference counter. This allows to avoid accidental
refcounter overflows that might lead to use-after-free
situations.
Signed-off-by: Elena Reshetova <elena.reshetova@intel.com>
Signed-off-by: Hans Liljestrand <ishkamiel@gmail.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: David Windsor <dwindsor@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/atm/proc.c | 2 | ||||
| -rw-r--r-- | net/atm/resources.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/net/atm/proc.c b/net/atm/proc.c index 27c9c01c537d..4caca2a90ec4 100644 --- a/net/atm/proc.c +++ b/net/atm/proc.c @@ -61,7 +61,7 @@ static void atm_dev_info(struct seq_file *seq, const struct atm_dev *dev) add_stats(seq, "0", &dev->stats.aal0); seq_puts(seq, " "); add_stats(seq, "5", &dev->stats.aal5); - seq_printf(seq, "\t[%d]", atomic_read(&dev->refcnt)); + seq_printf(seq, "\t[%d]", refcount_read(&dev->refcnt)); seq_putc(seq, '\n'); } diff --git a/net/atm/resources.c b/net/atm/resources.c index 0447d5d0b639..918244757b7d 100644 --- a/net/atm/resources.c +++ b/net/atm/resources.c @@ -109,7 +109,7 @@ struct atm_dev *atm_dev_register(const char *type, struct device *parent, else memset(&dev->flags, 0, sizeof(dev->flags)); memset(&dev->stats, 0, sizeof(dev->stats)); - atomic_set(&dev->refcnt, 1); + refcount_set(&dev->refcnt, 1); if (atm_proc_dev_register(dev) < 0) { pr_err("atm_proc_dev_register failed for dev %s\n", type); |