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param: fix NULL comparison on oom

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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
This commit is contained in:
Rusty Russell 2009-10-29 08:56:17 -06:00
parent 65afac7d80
commit d553ad864e
1 changed files with 1 additions and 1 deletions
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2
kernel/params.c
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@ -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;