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libceph: check kstrndup() return value

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Should check result of kstrndup() in case of memory allocation failure.

Signed-off-by: Chengguang Xu <cgxu519@icloud.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
This commit is contained in:
Chengguang Xu 2018-01-26 14:54:43 +08:00 • committed by Ilya Dryomov
parent e30ee58121
commit affff07739
1 changed files with 4 additions and 0 deletions
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4
net/ceph/ceph_common.c
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@ -421,6 +421,10 @@ ceph_parse_options(char *options, const char *dev_name,
opt->name = kstrndup(argstr[0].from, opt->name = kstrndup(argstr[0].from,
argstr[0].to-argstr[0].from, argstr[0].to-argstr[0].from,
GFP_KERNEL); GFP_KERNEL);
if (!opt->name) {
err = -ENOMEM;
goto out;
}
break; break;
case Opt_secret: case Opt_secret:
opt->key = kzalloc(sizeof(*opt->key), GFP_KERNEL); opt->key = kzalloc(sizeof(*opt->key), GFP_KERNEL);