[SPARC64]: Fix set/get MTU cases in sunos_ioctl()

Need to use compat struct sizes and compat_sys_ioctl().
Reported by Adrian Bunk via kernel bugzilla #2683

Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/arch/sparc64/kernel/sunos_ioctl32.c b/arch/sparc64/kernel/sunos_ioctl32.c
index 87c1aeb..7654b8a 100644 (file)
--- a/arch/sparc64/kernel/sunos_ioctl32.c
+++ b/arch/sparc64/kernel/sunos_ioctl32.c
@@ -152,11 +152,12 @@ asmlinkage int sunos_ioctl (int fd, u32 cmd, u32 arg)
                ret = compat_sys_ioctl(fd, SIOCGIFCONF, arg);
                goto out;
 
-       case _IOW('i', 21, struct ifreq): /* SIOCSIFMTU */
-               ret = sys_ioctl(fd, SIOCSIFMTU, arg);
+       case _IOW('i', 21, struct ifreq32):
+               ret = compat_sys_ioctl(fd, SIOCSIFMTU, arg);
                goto out;
-       case _IOWR('i', 22, struct ifreq): /* SIOCGIFMTU */
-               ret = sys_ioctl(fd, SIOCGIFMTU, arg);
+
+       case _IOWR('i', 22, struct ifreq32):
+               ret = compat_sys_ioctl(fd, SIOCGIFMTU, arg);
                goto out;
 
        case _IOWR('i', 23, struct ifreq32):