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authorAdrian Bunk <bunk@kernel.org>2007-11-14 17:00:37 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-11-14 18:45:44 -0800
commitf96159840bc5f605aca5113ab2d24308d3dc2eff (patch)
tree91e877d755451415ea79fe9da4419b465a0575d0 /kernel/taskstats.c
parent4ae44c57748ad37dcd1d998525f6929d2fe39d02 (diff)
downloadlinaro-lsk-f96159840bc5f605aca5113ab2d24308d3dc2eff.tar.gz
kernel/taskstats.c: fix bogus nlmsg_free()
We'd better not nlmsg_free on a pointer containing an undefined value (and without having anything allocated). Spotted by the Coverity checker. Signed-off-by: Adrian Bunk <bunk@kernel.org> Acked-by: Balbir Singh <balbir@linux.vnet.ibm> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/taskstats.c')
-rw-r--r--kernel/taskstats.c36
1 files changed, 18 insertions, 18 deletions
diff --git a/kernel/taskstats.c b/kernel/taskstats.c
index 354e74bc17c..07e86a82807 100644
--- a/kernel/taskstats.c
+++ b/kernel/taskstats.c
@@ -398,31 +398,31 @@ static int cgroupstats_user_cmd(struct sk_buff *skb, struct genl_info *info)
fd = nla_get_u32(info->attrs[CGROUPSTATS_CMD_ATTR_FD]);
file = fget_light(fd, &fput_needed);
- if (file) {
- size = nla_total_size(sizeof(struct cgroupstats));
+ if (!file)
+ return 0;
- rc = prepare_reply(info, CGROUPSTATS_CMD_NEW, &rep_skb,
- size);
- if (rc < 0)
- goto err;
+ size = nla_total_size(sizeof(struct cgroupstats));
- na = nla_reserve(rep_skb, CGROUPSTATS_TYPE_CGROUP_STATS,
- sizeof(struct cgroupstats));
- stats = nla_data(na);
- memset(stats, 0, sizeof(*stats));
+ rc = prepare_reply(info, CGROUPSTATS_CMD_NEW, &rep_skb,
+ size);
+ if (rc < 0)
+ goto err;
- rc = cgroupstats_build(stats, file->f_dentry);
- if (rc < 0)
- goto err;
+ na = nla_reserve(rep_skb, CGROUPSTATS_TYPE_CGROUP_STATS,
+ sizeof(struct cgroupstats));
+ stats = nla_data(na);
+ memset(stats, 0, sizeof(*stats));
- fput_light(file, fput_needed);
- return send_reply(rep_skb, info->snd_pid);
+ rc = cgroupstats_build(stats, file->f_dentry);
+ if (rc < 0) {
+ nlmsg_free(rep_skb);
+ goto err;
}
+ rc = send_reply(rep_skb, info->snd_pid);
+
err:
- if (file)
- fput_light(file, fput_needed);
- nlmsg_free(rep_skb);
+ fput_light(file, fput_needed);
return rc;
}