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| author | Leon Yu <chianglungyu@gmail.com> | 2015-09-07 13:08:37 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-10-04 18:51:42 +0100 |
| commit | c1a752ba2d6b8a52879c7ab637cff38359ea9827 (patch) | |
| tree | 97a4090ddc27d70b3ca2c4b50941748395621a0e /drivers/rtc | |
| parent | 0c727a42043f79db210cdde0366f9137b9c6bf5a (diff) | |
| download | op-kernel-dev-c1a752ba2d6b8a52879c7ab637cff38359ea9827.zip op-kernel-dev-c1a752ba2d6b8a52879c7ab637cff38359ea9827.tar.gz | |
tty: don't leak cdev in tty_cdev_add()
Commit a3a10ce3429e ("Avoid usb reset crashes by making tty_io cdevs truly
dynamic") which mixes using cdev_alloc() and cdev_init() is problematic.
Subsequent call to cdev_init() after cdev_alloc() sets kobj release method
from cdev_dynamic_release() to cdev_default_release() and thus makes it
impossible to free allocated cdev.
This patch also consolidates error path of cdev_add() as cdev can also leak
here if things went wrong.
Signed-off-by: Leon Yu <chianglungyu@gmail.com>
Fixes: a3a10ce3429e ("Avoid usb reset crashes by making tty_io cdevs truly dynamic")
Acked-by: Richard Watts <rrw@kynesim.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/rtc')
0 files changed, 0 insertions, 0 deletions
