]> git.karo-electronics.de Git - karo-tx-linux.git/blobdiff - drivers/i2c/i2c-dev.c
ath6kl: fix open parenthesis alignment in ath6kl_sdio_suspend()
[karo-tx-linux.git] / drivers / i2c / i2c-dev.c
index 57a45ce84b2d42f893cf45fb6e876bc1904bcfde..10e7f1e7658610b8e2b697cf6e355a999aa4f5b6 100644 (file)
@@ -251,15 +251,10 @@ static noinline int i2cdev_ioctl_rdrw(struct i2c_client *client,
        if (rdwr_arg.nmsgs > I2C_RDRW_IOCTL_MAX_MSGS)
                return -EINVAL;
 
-       rdwr_pa = kmalloc(rdwr_arg.nmsgs * sizeof(struct i2c_msg), GFP_KERNEL);
-       if (!rdwr_pa)
-               return -ENOMEM;
-
-       if (copy_from_user(rdwr_pa, rdwr_arg.msgs,
-                          rdwr_arg.nmsgs * sizeof(struct i2c_msg))) {
-               kfree(rdwr_pa);
-               return -EFAULT;
-       }
+       rdwr_pa = memdup_user(rdwr_arg.msgs,
+                             rdwr_arg.nmsgs * sizeof(struct i2c_msg));
+       if (IS_ERR(rdwr_pa))
+               return PTR_ERR(rdwr_pa);
 
        data_ptrs = kmalloc(rdwr_arg.nmsgs * sizeof(u8 __user *), GFP_KERNEL);
        if (data_ptrs == NULL) {