[PATCH] i2c: strncpy does not null terminate string

[Roel Kluin]

With `sizeof(string) - 1` strncpy() will null terminate the string.

Signed-off-by: Roel Kluin <roel.kl...@gmail.com>
---
To test this:

#include <stdio.h>
#include <string.h>

char a[10];
char b[10];

int main()
{
        const char* str = "0123456789012";
        strncpy(a, str, sizeof(a));
        strncpy(b, str, sizeof(b) - 1);
        printf("String a was %s, b was %s\n", a, b);

        return 0;
}

diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c
index fdd8327..bede75d 100644
--- a/drivers/i2c/busses/i2c-omap.c
+++ b/drivers/i2c/busses/i2c-omap.c
@@ -879,7 +879,7 @@ omap_i2c_probe(struct platform_device *pdev)
        i2c_set_adapdata(adap, dev);
        adap->owner = THIS_MODULE;
        adap->class = I2C_CLASS_HWMON;
-       strncpy(adap->name, "OMAP I2C adapter", sizeof(adap->name));
+       strncpy(adap->name, "OMAP I2C adapter", sizeof(adap->name) - 1);
        adap->algo = &omap_i2c_algo;
        adap->dev.parent = &pdev->dev;
 
--
To unsubscribe from this list: send the line "unsubscribe linux-i2c" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html