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| author | Eric Dumazet <edumazet@google.com> | 2022-07-29 12:12:32 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-08-21 16:15:51 +0300 |
| commit | 9a070a4417660f0a2d01ee85a9914b342b0a7af8 (patch) | |
| tree | 5d932f50021741bfc0d85abdaeb211e09813b4fa /drivers/bluetooth | |
| parent | 397e52dec16839b1296a350d8a34f898f284e061 (diff) | |
| download | linux-9a070a4417660f0a2d01ee85a9914b342b0a7af8.tar.xz | |
net: rose: fix netdev reference changes
[ Upstream commit 931027820e4dafabc78aff82af59f8c1c4bd3128 ]
Bernard reported that trying to unload rose module would lead
to infamous messages:
unregistered_netdevice: waiting for rose0 to become free. Usage count = xx
This patch solves the issue, by making sure each socket referring to
a netdevice holds a reference count on it, and properly releases it
in rose_release().
rose_dev_first() is also fixed to take a device reference
before leaving the rcu_read_locked section.
Following patch will add ref_tracker annotations to ease
future bug hunting.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Reported-by: Bernard Pidoux <f6bvp@free.fr>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Tested-by: Bernard Pidoux <f6bvp@free.fr>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/bluetooth')
0 files changed, 0 insertions, 0 deletions