Use strlcpy() to guarantee strings in i2c device type and driver_name 
fields are 0-terminated.

Signed-off-by: Guennadi Liakhovetski <[EMAIL PROTECTED]>

---

On Wed, 15 Aug 2007, Paul Mackerras wrote:

> That's not a commit message I can use.  Please repost with an
> informative commit message that says what the motivation for the
> change is, plus anything other information that would be useful for
> someone looking at this in a couple of years' time.

Sure, sorry. This should be fine - below "---" I may write whatever I 
want:-)

Thanks
Guennadi

diff --git a/arch/powerpc/sysdev/fsl_soc.c b/arch/powerpc/sysdev/fsl_soc.c
index 727453d..c0d66df 100644
--- a/arch/powerpc/sysdev/fsl_soc.c
+++ b/arch/powerpc/sysdev/fsl_soc.c
@@ -320,21 +320,26 @@ static struct i2c_driver_device i2c_devices[] __initdata 
= {
        {"ricoh,rv5c387a", "rtc-rs5c372", "rv5c387a",},
 };
 
-static int __init of_find_i2c_driver(struct device_node *node, struct 
i2c_board_info *info)
+static int __init of_find_i2c_driver(struct device_node *node,
+                                    struct i2c_board_info *info)
 {
        int i;
 
        for (i = 0; i < ARRAY_SIZE(i2c_devices); i++) {
                if (!of_device_is_compatible(node, i2c_devices[i].of_device))
                        continue;
-               strncpy(info->driver_name, i2c_devices[i].i2c_driver, 
KOBJ_NAME_LEN);
-               strncpy(info->type, i2c_devices[i].i2c_type, I2C_NAME_SIZE);
+               if (strlcpy(info->driver_name, i2c_devices[i].i2c_driver,
+                           KOBJ_NAME_LEN) >= KOBJ_NAME_LEN ||
+                   strlcpy(info->type, i2c_devices[i].i2c_type,
+                           I2C_NAME_SIZE) >= I2C_NAME_SIZE)
+                       return -ENOMEM;
                return 0;
        }
        return -ENODEV;
 }
 
-static void __init of_register_i2c_devices(struct device_node *adap_node, int 
bus_num)
+static void __init of_register_i2c_devices(struct device_node *adap_node,
+                                          int bus_num)
 {
        struct device_node *node = NULL;
 
_______________________________________________
Linuxppc-dev mailing list
Linuxppc-dev@ozlabs.org
https://ozlabs.org/mailman/listinfo/linuxppc-dev

Reply via email to