git.stricted.de - GitHub/moto-9609/android_kernel_motorola

author	Andy Shevchenko <andriy.shevchenko@linux.intel.com>
	Mon, 12 Sep 2016 21:23:42 +0000 (00:23 +0300)
committer	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
	Thu, 15 Sep 2016 10:35:49 +0000 (12:35 +0200)
commit	a5a2b13074fd8d290bad32a5b0a0c5be9f3a84fa
tree	46bc2c52942c37363e17dc750884e0954642ae10	tree \| snapshot (tar.gz zip)
parent	0ae9fdefb6c37237d826d6195e27810ffcc0b6e0	commit \| diff

serial: core: fix potential NULL pointer dereference

The commit 761ed4a94582 ("tty: serial_core: convert uart_close to use
tty_port_close") refactored uart_close() to use tty_port_close(). At the same
time it introduced a potential NULL pointer dereference. Rearrange the code to
avoid kernel crash.

Fixes: 761ed4a94582 ("tty: serial_core: convert uart_close to use tty_port_close")
Cc: Rob Herring <robh@kernel.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>