um: vector: Fix a memory allocation check

Checking the result of the previous 'kstrdup()' call is expected here, so
we should test 'params' and not 'str' (which is known to be non-NULL at
this point)

Fixes: ad1f62ab2bd4 ("High Performance UML Vector Network Driver")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Richard Weinberger <richard@nod.at>

diff --git a/arch/um/drivers/vector_kern.c b/arch/um/drivers/vector_kern.c
index bb83a2d22ac22a25b0c1718d5d20aa32734a40f8..063c76b3a21527935d5ce0ca9a1da74cb5e71b61 100644 (file)
--- a/arch/um/drivers/vector_kern.c
+++ b/arch/um/drivers/vector_kern.c
@@ -723,7 +723,7 @@ static int vector_config(char *str, char **error_out)
         */
 
        params = kstrdup(params, GFP_KERNEL);
-       if (str == NULL) {
+       if (params == NULL) {
                *error_out = "vector_config failed to strdup string";
                return -ENOMEM;
        }