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| author | Jingchang Lu <jingchang.lu@freescale.com> | 2014-10-21 16:50:21 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-11-05 20:12:02 -0800 |
| commit | 7e12e675c17982a8b3cc91314a68f4c4d1bceb92 (patch) | |
| tree | fac5e093a77324a06830339e4ca8d2dee0d4fabb /drivers/tty/serial/of_serial.c | |
| parent | 9e326f78713a4421fe11afc2ddeac07698fac131 (diff) | |
| download | linux-7e12e675c17982a8b3cc91314a68f4c4d1bceb92.tar.gz linux-7e12e675c17982a8b3cc91314a68f4c4d1bceb92.tar.bz2 linux-7e12e675c17982a8b3cc91314a68f4c4d1bceb92.zip | |
serial: of-serial: fix uninitialized kmalloc variable
The info pointer points to an uninitialized kmalloced space.
If a device doesn't have clk property, then info->clk may
have unpredicated value and cause call trace. So use kzalloc
to make sure it is NULL initialized.
Signed-off-by: Jingchang Lu <jingchang.lu@freescale.com>
Acked-by: Arnd Bergmann <arnd@arndb.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/of_serial.c')
| -rw-r--r-- | drivers/tty/serial/of_serial.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/tty/serial/of_serial.c b/drivers/tty/serial/of_serial.c index 8bc2563335ae..56982da4a9e9 100644 --- a/drivers/tty/serial/of_serial.c +++ b/drivers/tty/serial/of_serial.c @@ -158,7 +158,7 @@ static int of_platform_serial_probe(struct platform_device *ofdev) if (of_find_property(ofdev->dev.of_node, "used-by-rtas", NULL)) return -EBUSY; - info = kmalloc(sizeof(*info), GFP_KERNEL); + info = kzalloc(sizeof(*info), GFP_KERNEL); if (info == NULL) return -ENOMEM; |