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

parent 65afac7d

kernel/params.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -222,7 +222,7 @@ int param_set_charp(const char val, struct kernel_param kp)
		* 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;