param: fix NULL comparison on oom
kp->arg is always true: it's the contents of that pointer we care about.
Reported-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: stable@kernel.org
diff --git a/kernel/params.c b/kernel/params.c
index 95ef27c..00520c4 100644
--- a/kernel/params.c
+++ b/kernel/params.c
@@ -222,7 +222,7 @@
* don't need to; this mangled commandline is preserved. */
if (slab_is_available()) {
*(char **)kp->arg = kstrdup(val, GFP_KERNEL);
- if (!kp->arg)
+ if (!*(char **)kp->arg)
return -ENOMEM;
} else
*(const char **)kp->arg = val;
